-
question_answer1)
The process by which plants give rise to new plants without seeds is called
A)
Sexual reproduction done
clear
B)
Vegetative propagation done
clear
C)
Asexual reproduction done
clear
D)
Budding done
clear
View Solution play_arrow
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question_answer2)
Male reproductive part of a plant is
A)
pores done
clear
B)
pistil done
clear
C)
stamen done
clear
D)
ovary done
clear
View Solution play_arrow
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question_answer3)
Reproduction in yeast takes place by
A)
zygote done
clear
B)
fragmentation done
clear
C)
budding done
clear
D)
spore formation done
clear
View Solution play_arrow
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question_answer4)
The cell which is formed after fusion of gametes is called _________.
A)
spore done
clear
B)
embryo done
clear
C)
pistil done
clear
D)
zygote done
clear
View Solution play_arrow
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question_answer5)
The flower which contain either pistil or stamen is called
A)
Unisexual flowers done
clear
B)
Asexual flowers done
clear
C)
Bisexual flowers done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer6)
Mature ovary forms the
A)
seed done
clear
B)
fruit done
clear
C)
stamen done
clear
D)
pistil done
clear
View Solution play_arrow
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question_answer7)
A spore producing plant is
A)
rose done
clear
B)
potato done
clear
C)
bread mould done
clear
D)
ginger done
clear
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question_answer8)
Bryophyllum can reproduce by
A)
stem done
clear
B)
root done
clear
C)
leaves done
clear
D)
flower done
clear
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question_answer9)
Which of the following constitute a pistil?
A)
Stigma, style and anther done
clear
B)
Stigma, style and ovary done
clear
C)
Stigma, stamen and ovary done
clear
D)
Pollen sac, style and ovule done
clear
View Solution play_arrow
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question_answer10)
Female gametes are present in
A)
anther done
clear
B)
ovary done
clear
C)
pollen tube done
clear
D)
stigma done
clear
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question_answer11)
Male gametes are present in
A)
anther done
clear
B)
ovary done
clear
C)
filament done
clear
D)
style done
clear
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question_answer12)
Reproduction is essential for living organism in order to
A)
Keep individual organ alive done
clear
B)
Maintain growth done
clear
C)
Fulfill their energy requirement done
clear
D)
continue the species forever done
clear
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question_answer13)
Vegetative propagation refers to the formation of new plants from the following existing organs of the old plants:
A)
stems, roots, flowers done
clear
B)
stems, flowers, fruits done
clear
C)
roots, stems, leaves done
clear
D)
stems, leaves, flowers done
clear
View Solution play_arrow
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question_answer14)
Reproduction is described as a phenomenon by which of these options?
A)
increase in size done
clear
B)
increase in number done
clear
C)
form new tissues and organs done
clear
D)
develop from zygotes done
clear
View Solution play_arrow
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question_answer15)
Growth of a new organism on or inside the parent body is called
A)
Fragmentation done
clear
B)
Grafting done
clear
C)
Budding done
clear
D)
all of these done
clear
View Solution play_arrow
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question_answer16)
The process of fertilization of angiosperms is called
A)
Single fertilization done
clear
B)
Double fertilization done
clear
C)
Multiple fission done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer17)
The pollen of a flowering plant
A)
Contains sperm cells done
clear
B)
is brightly coloured to attract insects done
clear
C)
holds the embryo done
clear
D)
is produced by the pistil done
clear
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question_answer18)
Select the one that does not reproduce from seeds.
A)
Rose done
clear
B)
Pine done
clear
C)
Oak done
clear
D)
Moss done
clear
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question_answer19)
Germination occurs when
A)
an already dormant embryo is activated done
clear
B)
the cotyledons emerge above ground done
clear
C)
either hypocotyls or epicotyls emerges above ground done
clear
D)
Vascular tissue begins the transport of water and minerals. done
clear
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question_answer20)
Sugarcane plants are generally propagated by vegetative reproduction because
A)
they do not produce seeds done
clear
B)
the seeds are not viable done
clear
C)
the incidence of disease may be reduced; done
clear
D)
all of the above done
clear
View Solution play_arrow
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question_answer21)
Pollen grains of insect pollinated flowers are
A)
smooth and sticky done
clear
B)
Smooth and rough done
clear
C)
Rough and dry done
clear
D)
Rough and sticky done
clear
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question_answer22)
Select the one that is true about cross pollination
A)
generally it results in higher yield of plants done
clear
B)
It takes place only in unisexual flowers done
clear
C)
It can fail to occur because of distance barrier done
clear
D)
It requires production of large number of pollen grains. done
clear
View Solution play_arrow
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question_answer23)
Select the method of asexual reproduction.
A)
Fragmentation done
clear
B)
Budding done
clear
C)
Spore formation done
clear
D)
all of the above done
clear
View Solution play_arrow
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question_answer24)
Vegetative buds are
A)
buds in the axil done
clear
B)
flower buds done
clear
C)
both of these done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer25)
Select the plant whose buds are in the margin of leaves.
A)
potato done
clear
B)
ginger done
clear
C)
sprout leaf plant done
clear
D)
turmeric done
clear
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question_answer26)
Spores are
A)
asexual reproductive bodies done
clear
B)
sexual reproductive bodies done
clear
C)
covered by delicate coatings done
clear
D)
all the above are correct done
clear
View Solution play_arrow
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question_answer27)
Which of the following are bisexual flowers?
A)
Corn done
clear
B)
Papaya done
clear
C)
Rose done
clear
D)
Cucumber done
clear
View Solution play_arrow
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question_answer28)
The cell which results after fusion of gametes is called
A)
Fertilization done
clear
B)
egg done
clear
C)
Zygote done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer29)
Mature ovary forms the
A)
seed done
clear
B)
stamen done
clear
C)
pistil done
clear
D)
fruit done
clear
View Solution play_arrow
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question_answer30)
When spores of fungi in a bread piece are released, why do they keep floating in air?
A)
they are light done
clear
B)
they can move only slowly done
clear
C)
they are asexual reproductive bodies done
clear
D)
all of the above done
clear
View Solution play_arrow
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question_answer31)
Sweet potatoes reproduce from
A)
modified leaves done
clear
B)
modified stem done
clear
C)
modified roots done
clear
D)
modified flowers done
clear
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question_answer32)
Mushrooms reproduce through
A)
spores done
clear
B)
modified stems done
clear
C)
buds on leaf margin done
clear
D)
fission done
clear
View Solution play_arrow
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question_answer33)
Onions and gladioli grow from
A)
bulbs done
clear
B)
roots done
clear
C)
spores done
clear
D)
buds on leaf margin done
clear
View Solution play_arrow
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question_answer34)
In potatoes new plant grow from
A)
bulbs of modified stems done
clear
B)
buds on leaflets done
clear
C)
eyes of modified stems done
clear
D)
modified roots done
clear
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question_answer35)
Which of the following grow from modified roots?
A)
Onion done
clear
B)
Radish done
clear
C)
Begonia done
clear
D)
Potato done
clear
View Solution play_arrow
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question_answer36)
Pollen sacs are found in
A)
pollen grain done
clear
B)
pollen tube done
clear
C)
anther done
clear
D)
ovule done
clear
View Solution play_arrow
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question_answer37)
Stigma is sticky
A)
to produce scents to attract birds and insects done
clear
B)
to hold pollen grains strongly done
clear
C)
there is no known function done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer38)
Corolla in a flower helps
A)
to produce male gametes done
clear
B)
to produce female gametes done
clear
C)
to hold pollen grains done
clear
D)
to attract insects done
clear
View Solution play_arrow
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question_answer39)
Seeds with looks are dispersed by
A)
water done
clear
B)
wind done
clear
C)
animals done
clear
D)
explosion done
clear
View Solution play_arrow
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question_answer40)
Seeds of poppy are dispersed by
A)
wind done
clear
B)
water done
clear
C)
animals done
clear
D)
explosion done
clear
View Solution play_arrow
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question_answer41)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns
Column-I | Column-II |
(A) Mango | (p) Foliar buds |
(B) Rhizopus | (q) Bulb |
(C) Begonia | (r) Grafting |
(D) Onion | (s) Spore |
A)
(A) \[\to \] (q),(B) \[\to \] (p),(C) \[\to \] (r),(D) \[\to \] (s) done
clear
B)
(A) \[\to \] (r),(B) \[\to \] (p),(C) \[\to \] (q),(D) \[\to \] (s) done
clear
C)
(A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (p),(D) \[\to \] (q) done
clear
D)
(A) \[\to \] (q),(B) \[\to \] (r),(C) \[\to \] (s),(D) \[\to \] (p) done
clear
View Solution play_arrow
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question_answer42)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns
Column-I | Column-II |
(A) Coastor | (p) Water |
(B) Lotus | (q) Animals |
(C) Xanthium | (r) Explosion |
(D) Maple | (s) Wind |
A)
(A) \[\to \] (s),(B) \[\to \] (p),(C) \[\to \] (r),(D) \[\to \] (q) done
clear
B)
(A) \[\to \] (r),(B) \[\to \] (p),(C) \[\to \] (q),(D) \[\to \] (s) done
clear
C)
(A) \[\to \] (r),(B) \[\to \] (p),(C) \[\to \] (s),(D) \[\to \] (q) done
clear
D)
(A) \[\to \] (q),(B) \[\to \] (r),(C) \[\to \] (p),(D) \[\to \] (s) done
clear
View Solution play_arrow
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question_answer43)
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns
Column-I | Column-II |
(A) Pollen | (p) Calyx |
(B) Eggs | (q) Corolla |
(C) Sepals | (r) Ovary |
(D) Petals | (s) Anther |
A)
(A) \[\to \] (s),(B) \[\to \] (r),(C) \[\to \] (p),(D) \[\to \] (q) done
clear
B)
(A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (q),(D) \[\to \] (p) done
clear
C)
(A) \[\to \] (s),(B) \[\to \] (r),(C) \[\to \] (q),(D) \[\to \] (p) done
clear
D)
(A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (p),(D) \[\to \] (q) done
clear
View Solution play_arrow
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question_answer44)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The flowers which contain either only the pistil or only the stamens are called unisexual flowers. The flowers which contain both stamen and pistil are called bisexual flowers. Which of the following is/are parts of a stamen?
A)
Anther done
clear
B)
Pistil done
clear
C)
Ovule done
clear
D)
All of the above done
clear
View Solution play_arrow
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question_answer45)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The flowers which contain either only the pistil or only the stamens are called unisexual flowers. The flowers which contain both stamen and pistil are called bisexual flowers. Which of the following is a unisexual flower?
A)
mustard done
clear
B)
petunia done
clear
C)
corn done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer46)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The flowers which contain either only the pistil or only the stamens are called unisexual flowers. The flowers which contain both stamen and pistil are called bisexual flowers. Anther contains pollen grains which produce
A)
ovule done
clear
B)
male gametes done
clear
C)
female gametes done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer47)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 A filamentous alga X is found in ponds, lakes and streams. The filament of this alga breaks into two (or more) pieces on maturing and each piece then grows to become a new alga Identify the alga from the following:
A)
Paramedum done
clear
B)
Hydra done
clear
C)
Spirogyra done
clear
D)
Yeast done
clear
View Solution play_arrow
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question_answer48)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 A filamentous alga X is found in ponds, lakes and streams. The filament of this alga breaks into two (or more) pieces on maturing and each piece then grows to become a new alga What is the method of reproduction described here?
A)
Budding done
clear
B)
Fragmentation done
clear
C)
Binary fission s done
clear
D)
Regeneration done
clear
View Solution play_arrow
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question_answer49)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 A filamentous alga X is found in ponds, lakes and streams. The filament of this alga breaks into two (or more) pieces on maturing and each piece then grows to become a new alga Which of the following organism also reproduce by the same method as alga X?
A)
Rhizopus done
clear
B)
Sea Anemone done
clear
C)
Sponges done
clear
D)
Yeast done
clear
View Solution play_arrow
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question_answer50)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 A thick underground stem of a plant which has stored food has a number of points on it, when the old stem of this plant is planted in the soil, then each point on its surface grows into a new plant. Which of the following could be the example of underground stem?
A)
Onion done
clear
B)
Potato done
clear
C)
Radish done
clear
D)
Carrot done
clear
View Solution play_arrow
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question_answer51)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 A thick underground stem of a plant which has stored food has a number of points on it, when the old stem of this plant is planted in the soil, then each point on its surface grows into a new plant. What are the points present on the stem known as?
A)
Nodes done
clear
B)
buds done
clear
C)
Eyes done
clear
D)
roots done
clear
View Solution play_arrow
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question_answer52)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 A thick underground stem of a plant which has stored food has a number of points on it, when the old stem of this plant is planted in the soil, then each point on its surface grows into a new plant. What is the name of this method of reproduction in plants?
A)
Vegetative propagation of tubers done
clear
B)
Sexual reproduction by seeds done
clear
C)
Vegetative propagation by bulbs done
clear
D)
Sexual reproduction by flowers done
clear
View Solution play_arrow
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question_answer53)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 When an insect sits on the flower of a plant then some particles from the little stalks in the flowers sticks to its body when this insect now sits on the flower of another plant, the particles get deposited in the other flower. What are these particles?
A)
Rector done
clear
B)
Pollen done
clear
C)
Dust done
clear
D)
Honey done
clear
View Solution play_arrow
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question_answer54)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 When an insect sits on the flower of a plant then some particles from the little stalks in the flowers sticks to its body when this insect now sits on the flower of another plant, the particles get deposited in the other flower. Which phenomenon is described here?
A)
fertilization done
clear
B)
fusion of gametes done
clear
C)
germination done
clear
D)
pollination done
clear
View Solution play_arrow
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question_answer55)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 When an insect sits on the flower of a plant then some particles from the little stalks in the flowers sticks to its body when this insect now sits on the flower of another plant, the particles get deposited in the other flower. Which of the following steps will occur first after the deposition of particles?
A)
development of pollen tube done
clear
B)
fusion of gametes done
clear
C)
formation of zygote done
clear
D)
development of fruits done
clear
View Solution play_arrow
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question_answer56)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): A stamen has 2 parts. Reason (R): Filament and anther are parts of a stamen.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer57)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Seeds are product of sexual reproduction in plants. Reason (R): Seeds are not products in potatoes.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer58)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Moringa seeds have wings. Reason (R): Moringa seeds are dispersed by wind.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer59)
DIRECTIONS: The questions in this segment consists of two statements, one labeled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Spores are reproductive structures in some fungi plants. Reason (R): Spores have thick walls to survive unfavorable conditions.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer60)
Directions: Read the following two statements carefully and choose the correct option. (i) Some plants reproduce by growing vegetative parts into new plants (ii) In sexual reproduction there is fusion of similar gametes.
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer61)
Directions: Read the following two statements carefully and choose the correct option. (i) The integuments leave a small opening called Chalaza (ii) The basal part of ovule is called micropyle.
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer62)
Directions: Read the following two statements carefully and choose the correct option. (i) After fertilization, the ovary becomes the fruit and ovules the seeds. (ii) Study of pollen grains is called palynology
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer63)
Directions: Read the following two statements carefully and choose the correct option. (i) Flowers pollinated by insects are colourless and small in size (ii) Seeds with spines are dispersed by humans and animals
A)
Statement (i) is correct while statement (ii) is incorrect. done
clear
B)
Statement (ii) is correct while statement (i) is incorrect. done
clear
C)
Both statements are correct. done
clear
D)
Both statements are incorrect. done
clear
View Solution play_arrow
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question_answer64)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. Look at the following image
A wind pollinated flower will have:
A)
large anthers, coloured petals and produce nectar done
clear
B)
large petals, small anthers and produce scent done
clear
C)
small petals, nectar and produce scent done
clear
D)
small petals, large anthers and have a feathery stigma done
clear
View Solution play_arrow
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question_answer65)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. An example of a seed dispersed by the wind is
A)
B)
C)
D)
View Solution play_arrow
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question_answer66)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. In an experiment to determine the conditions necessary for germination, one of the test tubes had seeds placed under cooled boiled water. Why was the water boiled?
A)
To remove oxygen from the water. done
clear
B)
To kill germs in the water. done
clear
C)
To get the water to a suitable temperature for germination. done
clear
D)
To remove carbon dioxide from the water. done
clear
View Solution play_arrow
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question_answer67)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. In the carpel, the male gamete makes its way to the female gamete bypassing down through the _________.
A)
Ovary done
clear
B)
Pollen tube done
clear
C)
Filament done
clear
D)
Sepal done
clear
View Solution play_arrow
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question_answer68)
Wind pollinated flowers are called
A)
Entomophilous done
clear
B)
Anemophilous done
clear
C)
Hydrophilous done
clear
D)
Chiropterophilous done
clear
View Solution play_arrow
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question_answer69)
Vegetative propagation by stem can be seen in
A)
potato done
clear
B)
ginger done
clear
C)
dahlia done
clear
D)
both (a) & (b) done
clear
View Solution play_arrow
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question_answer70)
__________ pollinated flowers are colorful and fragrant and have nectaries.
A)
insects done
clear
B)
wind done
clear
C)
water done
clear
D)
animals done
clear
View Solution play_arrow
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question_answer71)
Parthenocarpic fruit is found in
A)
pineapple done
clear
B)
mango done
clear
C)
orange done
clear
D)
plum done
clear
View Solution play_arrow
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question_answer72)
Development of a fruit without pollination or fertilization is called_______.
A)
germination done
clear
B)
parthenocarpy done
clear
C)
embryogeny done
clear
D)
reproduction done
clear
View Solution play_arrow
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question_answer73)
Which of the following is a type of asexual reproduction?
A)
Oogenesis done
clear
B)
Gametogenesis done
clear
C)
Fragmentation done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer74)
Asexual reproduction is also known as
A)
Somatic reproduction done
clear
B)
Somatogenic reproduction done
clear
C)
Gametogenesis done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer75)
The pollen grain represents a
A)
male sporophyte done
clear
B)
male gametophyte done
clear
C)
female sporophyte done
clear
D)
female gametophyte done
clear
View Solution play_arrow
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question_answer76)
Sexual reproduction is given an advantage over asexual reproduction because
A)
it produces more offspring done
clear
B)
it preserves parental genotype done
clear
C)
it ensures survival of species done
clear
D)
it increases variations among the offspring of an individual. done
clear
View Solution play_arrow
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question_answer77)
These are the buds in the axil of leaves which develop into shoot. These are called
A)
flower buds done
clear
B)
vegetative buds done
clear
C)
both the above are correct done
clear
D)
none of these is correct done
clear
View Solution play_arrow
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question_answer78)
In this plant the buds are in the margin of leaves. If leaf of this plant falls on a moist soil, each bud can give rise to a new plant. This plant is
A)
Bryophyllum done
clear
B)
Sprout leaf plant done
clear
C)
both (a) and (b) done
clear
D)
algae done
clear
View Solution play_arrow
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question_answer79)
These are asexual reproductive bodies which are covered by a hard protective coating and they can survive for a long time. The plants of moss and ferns reproduce by means of these bodies. These are
A)
stamen done
clear
B)
stigma done
clear
C)
spores done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer80)
It is a female gamete and is formed in an ovule. It is
A)
ovary done
clear
B)
egg done
clear
C)
zygote done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer81)
Why the plants are produced by vegetative propagation an exact copy of parent plant?
A)
They are produced under controlled conditions done
clear
B)
They are produced from single parents done
clear
C)
both the above done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer82)
Pollination is
A)
Similar to fertilization of animals done
clear
B)
shedding of pollen from anthers done
clear
C)
transfer of pollen from anther to stigma done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer83)
The mode of reproduction shown by fuzzy and greyish growth on bread is
A)
Spore formation done
clear
B)
Budding done
clear
C)
Binary fission done
clear
D)
Regeneration done
clear
View Solution play_arrow
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question_answer84)
Flowers which have stamens and pistils are called:
A)
Complete flowers done
clear
B)
Incomplete flowers done
clear
C)
Unisexual flowers done
clear
D)
Homosexual flowers done
clear
View Solution play_arrow
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question_answer85)
Which of the following is a complete flower?
A)
Papaya done
clear
B)
Cucumber done
clear
C)
Bitter gourd done
clear
D)
Hibiscus done
clear
View Solution play_arrow
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question_answer86)
When you add yeast to dough, it rises beacuse:
A)
yeast cells reproduce by budding done
clear
B)
yeast cells form colonies done
clear
C)
of the bulk of new yeast cells done
clear
D)
the rapidly reproducing yeast cells release \[\text{C}{{\text{O}}_{\text{2}}}\] due to anerobic respiration done
clear
View Solution play_arrow
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question_answer87)
DIRECTION: Match column I with column II and select the correct answers using the code given below the columns.
Column-I | Column-II |
(i) Spirogyra | (A) stem cutting |
(ii) Potato | (B) Leaves |
(iii) Rose | (C) Tuber |
(iv) Bryophyllum | (D) Fragmentation |
A)
(i) \[\to \] (D),(ii) \[\to \] (C),(iii) \[\to \] (A),(iv) \[\to \] (B) done
clear
B)
(i) \[\to \] (C),(ii) \[\to \] (A),(iii) \[\to \] (B),(iv) \[\to \] (D) done
clear
C)
(i) \[\to \] (B),(ii) \[\to \] (A),(iii) \[\to \] (C),(iv) \[\to \] (D) done
clear
D)
(i) \[\to \] (D),(ii) \[\to \] (A),(iii) \[\to \] (B),(iv) \[\to \] (C) done
clear
View Solution play_arrow
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question_answer88)
DIRECTION: Match column I with column II and select the correct answers using the code given below the columns.
Column-I | Column-II |
(i) Drumstick, maple | (p) sori (sopres) |
(ii) Xanthium | (q) winged seeds |
(iii) Yeast | (r) spiny seeds |
(iv) Fern | (s) Budding |
A)
(i) \[\to \] (q),(ii) \[\to \] (s),(iii) \[\to \] (p),(iv) \[\to \] (r) done
clear
B)
(i) \[\to \] (q),(ii) \[\to \] (r),(iii) \[\to \] (s),(iv) \[\to \] (p) done
clear
C)
(i) \[\to \] (r),(ii) \[\to \] (q),(iii) \[\to \] (s),(iv) \[\to \] (p) done
clear
D)
(i) \[\to \] (r),(ii) \[\to \] (q),(iii) \[\to \] (p),(iv) \[\to \] (s) done
clear
View Solution play_arrow
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question_answer89)
DIRECTION: Match column I with column II and select the correct answers using the code given below the columns.
Column-I | Column-II |
(A) Fragmentation | (i) Found in Potato |
(B) Spores | (ii) Short stem around which immature developing leaves are folded |
(C) Bud | (iii) fungi on a bread grow from them |
(D) Eye | (iv) Process by which algae grow and multiply rapidly |
A)
(A) \[\to \] (i),(B) \[\to \] (ii),(C) \[\to \] (iii),(D) \[\to \] (iv) done
clear
B)
(A)\[\to \](ii),(B)\[\to \](iii),(C)\[\to \](iv),(D) \[\to \] (i) done
clear
C)
(A)\[\to \](iii),(B)\[\to \](iv),(C)\[\to \](i),(D)\[\to \](ii) done
clear
D)
(A)\[\to \](iv),(B)\[\to \](iii),(C)\[\to \](ii),(D)\[\to \](i) done
clear
View Solution play_arrow
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question_answer90)
DIRECTION: Match column I with column II and select the correct answers using the code given below the columns.
Column-I | Column-II |
(A) Node | (i) Part of the stem from which a leaf arises |
(B) Axil | (ii) Point of attachment of leaf at node |
(C) roots | (iii) can give rise to new plants in Dahliya |
(D) Bryophyllum | (iv) Sprout leaf plant |
A)
(A) \[\to \] (i),(B) \[\to \] (ii),(C) \[\to \] (iii),(D) \[\to \] (iv) done
clear
B)
(A) \[\to \] (ii),(B) \[\to \] (iii),(C) \[\to \] (iv),(D) \[\to \] (i) done
clear
C)
(A) \[\to \] (iii),(B) \[\to \] (iv),(C) \[\to \] (i),(D) \[\to \] (ii) done
clear
D)
(A) \[\to \] (iv),(B) \[\to \] (iii),(C) \[\to \] (ii),(D) \[\to \] (i) done
clear
View Solution play_arrow
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question_answer91)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The cell which results after fusion of gametes is called a zygote. The fusion of male and female gametes (to form a zygote) is called fertilization. The zygote develops into an embryo. Zygote formation occurs in
A)
asexual reproduction done
clear
B)
sexual reproduction done
clear
C)
both asexual and sexual reproduction done
clear
D)
all the above are correct done
clear
View Solution play_arrow
-
question_answer92)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The cell which results after fusion of gametes is called a zygote. The fusion of male and female gametes (to form a zygote) is called fertilization. The zygote develops into an embryo. The cell which results after fusion of male gametes and female gametes is called
A)
zygote done
clear
B)
fertilization done
clear
C)
embryo done
clear
D)
none of these done
clear
View Solution play_arrow
-
question_answer93)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The cell which results after fusion of gametes is called a zygote. The fusion of male and female gametes (to form a zygote) is called fertilization. The zygote develops into an embryo. The part of the flower which produce male gametes is called
A)
Anther done
clear
B)
Stamen done
clear
C)
filament done
clear
D)
none of these done
clear
View Solution play_arrow
-
question_answer94)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 The transfer of pollen from the anther to the stigma of a flower is called pollination. If the pollen lands on the stigma of the same flower it is called self-pollination. When the pollen of a flower lands on the stigma of another flower of the same plant, or that of a different plant of the same kind, it is called cross-pollination. Which of the following can carry pollen grains?
A)
Wind done
clear
B)
Water done
clear
C)
both wind and water done
clear
D)
none of these done
clear
View Solution play_arrow
-
question_answer95)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 The transfer of pollen from the anther to the stigma of a flower is called pollination. If the pollen lands on the stigma of the same flower it is called self-pollination. When the pollen of a flower lands on the stigma of another flower of the same plant, or that of a different plant of the same kind, it is called cross-pollination. In self pollination
A)
the pollen of a flower lands on anther of the same flower done
clear
B)
the pollen of a flower lands on stigma of a different flower on the same plant done
clear
C)
the pollen of a flower lands on stigma of the same flower done
clear
D)
none of the above is correct done
clear
View Solution play_arrow
-
question_answer96)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 The transfer of pollen from the anther to the stigma of a flower is called pollination. If the pollen lands on the stigma of the same flower it is called self-pollination. When the pollen of a flower lands on the stigma of another flower of the same plant, or that of a different plant of the same kind, it is called cross-pollination. In cross pollination
A)
the pollen of a flower lands on the stigma of another flower of the same plant done
clear
B)
the pollen of a flower lands on the stigma of another flower of a different plant of the same kind. done
clear
C)
both the above are correct done
clear
D)
none of these is correct done
clear
View Solution play_arrow
-
question_answer97)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 The phenomenon of formation of new individuals from existing ones to increase the population is called reproduction. Reproduction can be broadly grouped into two types: asexual reproduction and sexual reproduction Vegetative reproduction is
A)
a sexual reproduction done
clear
B)
an asexual reproduction done
clear
C)
a pollination done
clear
D)
a type of fertilization done
clear
View Solution play_arrow
-
question_answer98)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 The phenomenon of formation of new individuals from existing ones to increase the population is called reproduction. Reproduction can be broadly grouped into two types: asexual reproduction and sexual reproduction The mode of reproduction in which an individual produces offspring with the help of another individual is called:
A)
sexual reproduction done
clear
B)
asexual reproduction done
clear
C)
tissue culture done
clear
D)
fertilization done
clear
View Solution play_arrow
-
question_answer99)
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 The phenomenon of formation of new individuals from existing ones to increase the population is called reproduction. Reproduction can be broadly grouped into two types: asexual reproduction and sexual reproduction In vegetative propagation new plants are produced from
A)
roots done
clear
B)
stem done
clear
C)
leaves done
clear
D)
all of the above done
clear
View Solution play_arrow
-
question_answer100)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): A flower may either have a male or a female part. Reason (R): A flower having both male and female parts is called bisexual flower.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
-
question_answer101)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Vegetative propagation is a method of asexual reproduction in plants. Reason (R): In asexual reproduction new plants are obtained without production of seed or spore.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer102)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Yeast grows and multiplies every few hours if sufficient nutrients are available to it. Reason (R): When water and nutrients are available algae grow and multiply rapidly by budding.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
-
question_answer103)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Seeds germinate and form new plants. Reason (R): A spore germinates and develops into a new individual.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
-
question_answer104)
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Parts of pistil are anther and filament. Reason (R): Bisexual flowers are those which contain both stamen and pistil.
A)
Both A and R are true and R is the correct explanation of A. done
clear
B)
Both A and R are true but R is not the correct explanation of A. done
clear
C)
A is true but R is false. done
clear
D)
A is false but R is true. done
clear
View Solution play_arrow
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question_answer105)
DIRECTIONS: Read the following three statements carefully and choose the correct option. (i) Anther is a part of stamen (ii) Filament is a part of stamen (iii) Anther contains pollen grains
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
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question_answer106)
DIRECTIONS: Read the following three statements carefully and choose the correct option. (i) Roots of potato cannot give rise to new plants (ii) Plants produced by vegetative propagation take longer time to grow and bear flowers. (iii) Spores are asexual reproduction bodies
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
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question_answer107)
DIRECTIONS: Read the following three statements carefully and choose the correct option. (i) To cut any branch of a plant called cutting (ii) In asexual reproduction, without seeds plant can give rise to new plants (iii) Vegetative propagation is a method of asexual reproduction
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
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question_answer108)
DIRECTIONS: Read the following three statements carefully and choose the correct option. (i) A flower that contain only male or female parts is called bisexual flowers. (ii) A flower that contain all four parts is known as incomplete flower. (iii) A flower which contains only male or female part is called complete flower.
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
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question_answer109)
DIRECTIONS: Read the following three statements carefully and choose the correct option. (i) Moringa seeds are dispersed by wind (ii) The seeds of Balsam are dispersed by explosion (iii) Seeds of coconut are dispersed by water
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
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question_answer110)
DIRECTIONS: Read the following three statements carefully and choose the correct option. (i) Spirogyra reproduce by budding (ii) Rose reproduce by stem cutting (iii) Yeast reproduce by fragmentation
A)
Statements (i) and (iii) are incorrect but (ii) is correct. done
clear
B)
Statements (i) and (ii) are incorrect but (iii) is correct. done
clear
C)
All statements are correct. done
clear
D)
All statements are incorrect. done
clear
View Solution play_arrow
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question_answer111)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. In the following figure are shown some modifications of vegetative reproduction. These are
A)
modified roots done
clear
B)
modified underground stems done
clear
C)
modifical underground leaves done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer112)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. The given figure represents a carpel. Select the part that bears the female gamete.
A)
A done
clear
B)
B done
clear
C)
C done
clear
D)
D done
clear
View Solution play_arrow
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question_answer113)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. Study the picture given below and then answer the question.
The parts in the flower labeled as X and Y are
A)
X = petal, Y = stalk done
clear
B)
X = sepal, Y = carpel done
clear
C)
X = petal, Y = anther done
clear
D)
X = sepal, Y = anther done
clear
View Solution play_arrow
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question_answer114)
DIRECTIONS: Carefully observe pictures given below and answer the following questions. Name the parts labeled as X and Y
A)
X = plumule, Y = testa done
clear
B)
X = plumule, Y = radicle done
clear
C)
X = food store, Y = radicle done
clear
D)
X = radicle, Y = testa done
clear
View Solution play_arrow