-
question_answer1)
Male gametophyte of angiosperms/monocots is:
A)
Microsporangium done
clear
B)
Nucellus done
clear
C)
Microspore done
clear
D)
Stamen done
clear
View Solution play_arrow
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question_answer2)
The male gametophyte (microgametophyte) in case of monocots is:
A)
Tetrad done
clear
B)
Nucellus done
clear
C)
Megaspore done
clear
D)
Microspore done
clear
View Solution play_arrow
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question_answer3)
In a somatic cell, there are 16 chromosomes. What will be the number of chromosomes in the pollen mother cell of the plant?
A)
16 done
clear
B)
8 done
clear
C)
24 done
clear
D)
32 done
clear
View Solution play_arrow
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question_answer4)
Function of funicle includes:
A)
Support to the body done
clear
B)
Supplying nutrition to the body from the palcenta done
clear
C)
Both [a] and [b] done
clear
D)
None of these done
clear
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question_answer5)
If the haploid number in a flowering plant is 14. What shall be the number of chromosomes integuments, antipodal cells, embryo, endosperm and nucellus respectively?
A)
14, 28, 7, 42, 21 done
clear
B)
7, 14, 42, 28, 14 done
clear
C)
28, 14, 28, 42, 28 done
clear
D)
42, 28, 14, 28, 14 done
clear
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question_answer6)
As a pollen tube grows into the female organ, the nucleus that enters the synergid first is called the:
A)
Sperm nucleus done
clear
B)
Generative nucleus done
clear
C)
Tube nucleus done
clear
D)
Pollen nucleus done
clear
View Solution play_arrow
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question_answer7)
Central cell of embryo sac contains:
A)
A single haploid nucleus. done
clear
B)
Two haploid polar nuclei. done
clear
C)
One diploid fusion or secondary nucleus. done
clear
D)
Either [b] or [c] done
clear
View Solution play_arrow
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question_answer8)
Identify 1, 2, 3, 4 and 5 structures shown in figure of a female gametophyte respectively.
A)
Antipodal cells, Central cell. Polar nuclei, Synergids and Acrosome done
clear
B)
Antipodal cells, Central cell, Polar nuclei, Synergids and Filiform apparatus done
clear
C)
Synergids, Central cell, Polar nuclei, Antipodal cells and Filiform apparatus done
clear
D)
Synergids, Megaspore mother cell, Polar nuclei, Synergids, Filiform apparatus done
clear
View Solution play_arrow
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question_answer9)
In dicot embryo, the radicle is formed by:
A)
Epibasal tier of embryo done
clear
B)
Hypobasal tier of embryo done
clear
C)
Hypophysis of suspensor done
clear
D)
Terminal cell of suspensor done
clear
View Solution play_arrow
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question_answer10)
Dicot embryo consists of:
A)
Radicle and plumule done
clear
B)
Radicle, plumule, cotyledons and sometimes endosperm done
clear
C)
Radicle, plumule, cotyledons and tegmen done
clear
D)
Radicle, plumule, cotyledons, tegmen and testa done
clear
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question_answer11)
Generative cell was destroyed by laser but a normal pollen tube was still formed because:
A)
Vegetative cell is not damaged. done
clear
B)
Contents of killed generative cell stimulate pollen growth. done
clear
C)
Laser beam stimulates growth of pollen tube. done
clear
D)
The region of emergence of pollen tube is not harmed. done
clear
View Solution play_arrow
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question_answer12)
Female gametophyte of angiosperms is represented by:
A)
Ovule done
clear
B)
Megaspore mother cell done
clear
C)
Embryo sac done
clear
D)
Nucellus done
clear
View Solution play_arrow
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question_answer13)
Angiospermic plant having chromosome number of 12. What will be chromosome number in integuments and nucellus?
A)
4 done
clear
B)
6 done
clear
C)
12 done
clear
D)
24 done
clear
View Solution play_arrow
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question_answer14)
The arrangement of floral whorls on the thalamus from the outermost to the innermost is:
A)
Calyx, corolla, androecium and gynoecium done
clear
B)
Calyx, corolla, gynoecium and androecium done
clear
C)
Gynoecium, androecium, corolla and calyx done
clear
D)
Androecium, gynoecium, corolla and calyx done
clear
View Solution play_arrow
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question_answer15)
Exine of pollen is formed by activity of:
A)
Tapetum done
clear
B)
Endothelium done
clear
C)
Middle layers done
clear
D)
Endothecium done
clear
View Solution play_arrow
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question_answer16)
Male gametes or sperms are developed from generative cell by:
A)
Meiotic division done
clear
B)
Mitotic division done
clear
C)
Amitotic division done
clear
D)
none of these done
clear
View Solution play_arrow
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question_answer17)
Wall of a pollen sac consists of:
A)
Endothecium and tapetum done
clear
B)
Tapetum and middle layers done
clear
C)
Endothecium, middle layers and tapetum done
clear
D)
Epidermis, endothecium, middle layers and tapetum done
clear
View Solution play_arrow
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question_answer18)
In dicots, the most common pollen tetrad is:
A)
Isobilateral done
clear
B)
Tetrahedral done
clear
C)
Linear done
clear
D)
Decussate done
clear
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question_answer19)
Anther are:
A)
Externally tetralocular done
clear
B)
Internally tetralocular done
clear
C)
Externally and internally tetralocular done
clear
D)
Internally bilobed done
clear
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question_answer20)
If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be:
A)
Haploid done
clear
B)
Triploid done
clear
C)
Tetraploid done
clear
D)
Pentaploid done
clear
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question_answer21)
Aleurone cells are present in endosperm of:
A)
Cereals done
clear
B)
Legumes done
clear
C)
Both [a] and [b] done
clear
D)
None of these done
clear
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question_answer22)
Multinucleate condition is present in:
A)
Quiescent centre done
clear
B)
Maize done
clear
C)
Meristematic tissue done
clear
D)
Liquid endosperm of coconut done
clear
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question_answer23)
Match column-I with column- II and select the correct answer using the codes given below.
| Column-I | | Column-II |
A. | Zoophily | I. | Pollination by birds |
B. | Ornithophily | II. | Pollination by insects |
C. | Entomophily | III. | Pollination by bats |
D. | Chiropterophily | IV. | Pollination by animals |
A)
A-III; B-II; C-I; D-IV done
clear
B)
A-I; B-II; C-III; D-IV done
clear
C)
A-IV; B-I; C-II; D-III done
clear
D)
A-IV; B-II; C-I; D-III done
clear
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question_answer24)
Pea seeds are sown two feet deep in the soil. plants will be:
A)
Formed normally done
clear
B)
Not formed done
clear
C)
Weaker done
clear
D)
Healthier done
clear
View Solution play_arrow
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question_answer25)
Which one commonly develops haustoria in embryo sac?
A)
Synergids done
clear
B)
Antipodal cells done
clear
C)
Oosphere done
clear
D)
Central cell done
clear
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question_answer26)
An apomictic seed contains an embryo that is:
A)
Produced when two sperm fertilise one egg. done
clear
B)
Developed from one egg alone. done
clear
C)
The result of parental self - fertilisation. done
clear
D)
Genetically identical to its parent. done
clear
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question_answer27)
Scutellum is present in the embryo of:
A)
Pea done
clear
B)
Ranunculus done
clear
C)
Triticum done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer28)
In ovule, meiosis occurs in:
A)
Archesporial cell done
clear
B)
Megasporocyte done
clear
C)
Megaspore done
clear
D)
Parietal cell done
clear
View Solution play_arrow
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question_answer29)
Seeds are adaptively important because:
A)
They maintain dormancy. done
clear
B)
They protect young plants during vulnerable stages. done
clear
C)
They store food for young plants, and facilitate disperal. done
clear
D)
All of the above done
clear
View Solution play_arrow
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question_answer30)
Number of prothallial cells present in the male gametophyte of angiosperms is:
A)
One done
clear
B)
Two done
clear
C)
Many done
clear
D)
Zero done
clear
View Solution play_arrow
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question_answer31)
Growth of pollen tube is.
A)
Apical done
clear
B)
Basal done
clear
C)
Intercalary done
clear
D)
Diffused done
clear
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question_answer32)
Tapetum present in the microsporangial wall occurs between:
A)
Epidermis and endothecium done
clear
B)
Endothecium and middle layers done
clear
C)
Epidermis and middle layers done
clear
D)
Middle layers and sporogenous tissue done
clear
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question_answer33)
Pollen tube is covered by:
A)
Pectocellulose done
clear
B)
Sporopollenin done
clear
C)
Cellulose done
clear
D)
Lignocellulose done
clear
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question_answer34)
Polygonum type of embryo sac/typical female gametophyte of angiosperms is:
A)
7-celled, 7-nucleate done
clear
B)
7-celled, 8-nucleate done
clear
C)
8-celled, 7-nucleate done
clear
D)
8-celled, 8-nucleate done
clear
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question_answer35)
Ovule is inverted with body fused to funicle, micropyle lying close to hilum and facing the placenta. It is:
A)
Hemitropous done
clear
B)
Orthotropous done
clear
C)
Anatropous done
clear
D)
Campylotropous done
clear
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question_answer36)
Bamboo reproduces by:
A)
Rhizomes done
clear
B)
Tubers done
clear
C)
Corms done
clear
D)
Stolons done
clear
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question_answer37)
When the pollen tube enters the ovule through the integuments, the phenomenon is known as:
A)
Isogamy done
clear
B)
Porogamy done
clear
C)
Mesogamy done
clear
D)
Chalazogamy done
clear
View Solution play_arrow
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question_answer38)
Select the correct order of endosperm types.
A)
Cellular, helobial, free nuclear done
clear
B)
Cellular, free nuclear, helobial done
clear
C)
Helobial, free nuclear, cellular done
clear
D)
Free nuclear, cellular, helobial done
clear
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question_answer39)
Which of the following statement(s) is/are false?
(i) Pollen grains represents immatured male gametophyte. |
(ii) In angiosperms, partially developed male gametophytes are pollinated. |
(iii) Generative cell is siphonogamous while vegetative cell is spermatogenous. |
(iv) Formation and differentiation of pollen grains is called microsporogenesis. |
(v) Pollen grains of some plants produce seve allergy and respiratory or bronchial diseases. |
(vi) Pollen grains are poor in nutrients. |
A)
(i) and (vi) done
clear
B)
(iii) and (vi) done
clear
C)
(iv) and (v) done
clear
D)
(v) and (vi) done
clear
View Solution play_arrow
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question_answer40)
For self pollination, flower must be:
A)
Unisexual done
clear
B)
Bisexual done
clear
C)
Monosexual done
clear
D)
Asexual done
clear
View Solution play_arrow
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question_answer41)
The phenomenon of two flowers, one having long stamens and short styles, and other having short stamens and long style:
A)
Allogamy done
clear
B)
Heterostyly done
clear
C)
Dicliny done
clear
D)
Herkogamy done
clear
View Solution play_arrow
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question_answer42)
Which of the following pair has haploid structures?
A)
Nucellus and antipodal cells. done
clear
B)
Antipodal cells and egg cell. done
clear
C)
Antipodal cells and megaspore mother cell. done
clear
D)
Nucellus and primary endosperm nucleus. done
clear
View Solution play_arrow
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question_answer43)
In angiosperms, female gametophyte is represented by:
A)
Synergids done
clear
B)
Carpel done
clear
C)
Egg done
clear
D)
Pollen grains done
clear
View Solution play_arrow
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question_answer44)
Intine of pollen grain is made of:
A)
Callose done
clear
B)
Pecto-cellulose done
clear
C)
Cellulose done
clear
D)
Fat-like Sporopollenin done
clear
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question_answer45)
Abundant occurrence of fossilised pollen grains is due to resistant:
A)
Lignocellulose done
clear
B)
Sporopollenin done
clear
C)
Pectocellulose done
clear
D)
Pectolignin done
clear
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question_answer46)
Tapetal cells are:
A)
Haploid done
clear
B)
Polyploid done
clear
C)
Diploid done
clear
D)
Triploid done
clear
View Solution play_arrow
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question_answer47)
Embryo sac is surrounded by a wall of:
A)
Specialised nucellar cells done
clear
B)
Transfer cells done
clear
C)
Membrane of megaspore done
clear
D)
Membrane of egg done
clear
View Solution play_arrow
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question_answer48)
Vegetative nucleus occurs in:
A)
All flowering plants done
clear
B)
All seed plants done
clear
C)
All vascular plants done
clear
D)
All embryophytes done
clear
View Solution play_arrow
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question_answer49)
Cross-pollination is preferred over self pollination because:
A)
It results in better offspring done
clear
B)
The new varieties are formed done
clear
C)
It is easy done
clear
D)
Parthenogenesis can be induced done
clear
View Solution play_arrow
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question_answer50)
Which type of association is found in between entomophilous flower and pollinating agent?
A)
Mutualism done
clear
B)
Commensalism done
clear
C)
Cooperation done
clear
D)
Co-evolution done
clear
View Solution play_arrow
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question_answer51)
Unisexuality of flowers prevents:
A)
Geitonogamy but not xenogamy done
clear
B)
Autogamy and geitonogamy done
clear
C)
Autogamy but not geitonogamy done
clear
D)
Both geitonogamy and xenogamy done
clear
View Solution play_arrow
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question_answer52)
The endosperm in angiosperm develops from:
A)
Zygote done
clear
B)
Secondary nucleus done
clear
C)
Chalazal polar nucleus done
clear
D)
Micropylar polar nucleus done
clear
View Solution play_arrow
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question_answer53)
Given below are the different types of ovules. Identify A to F.
A)
A-Circinotropous, B-Amphitropous, C-Campylotropous, D-Hemitropous, E-Anatropous, F-Orthotropous done
clear
B)
A-Campylotropous, B-Anatropous, C-Hemitropous, D-Amphitropous, E-Circinotropous, F-Orthotropous done
clear
C)
A-Orthotropous, B-Anatropous, C-Hemitropous, D-Campylotropous, E-Amphitropous, F-Circinotropous done
clear
D)
A-Anatropous, B-Campylotropous, C-Hemitropous, D-Amphitropous, E-Circinotropous, F-Orthotropous done
clear
View Solution play_arrow
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question_answer54)
Which of the following statement is true about tapetum?
A)
It is the innermost layer of anther wall. done
clear
B)
Cells of tapetum are large in size and ha more than one diploid nuclei or polyploidy nucleus. done
clear
C)
It contributes in the formation of sporopollenin. done
clear
D)
All of the above done
clear
View Solution play_arrow
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question_answer55)
Hybrid seeds have to be produced every year because:
A)
Hybrid plants become sterile in coming years. done
clear
B)
They show more heterosis in coming years done
clear
C)
Hybrid vigour is not maintained beyond on generation as segregation of genes begins in the second generation. done
clear
D)
Hybrid seed industry tends to increase cost of the seeds. done
clear
View Solution play_arrow
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question_answer56)
In a seed of maize, scutellum is considered as cotyledon because it:
A)
Protects the embryo. done
clear
B)
Contains food for the embryo. done
clear
C)
Absorbs food materials and supplies them to the embryo done
clear
D)
Converts itself into a monocot leaf. done
clear
View Solution play_arrow
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question_answer57)
An example of a naturally occurring parthenocarpic fruit is:
A)
Guava done
clear
B)
Mango done
clear
C)
Banana done
clear
D)
Apple done
clear
View Solution play_arrow
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question_answer58)
The largest cell in a embryo sac is:
A)
Egg done
clear
B)
Central cell done
clear
C)
Synergid done
clear
D)
Antipodal cell done
clear
View Solution play_arrow
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question_answer59)
Meiosis of megaspore mother cell generally produces:
A)
Linear tetrad done
clear
B)
Tetrahedral tetrad done
clear
C)
Decussate tetrad done
clear
D)
Isobilateral tetrad done
clear
View Solution play_arrow
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question_answer60)
Xenogamy is also known as:
A)
Autogamy done
clear
B)
Cross pollination done
clear
C)
Self-pollination done
clear
D)
Cleistogamy done
clear
View Solution play_arrow
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question_answer61)
Wind pollinated flowers have:
A)
Small petals and sticky pollen. done
clear
B)
No petals and light pollen. done
clear
C)
Coloured and large petals with large pollen. done
clear
D)
Small petals and heavy pollen. done
clear
View Solution play_arrow
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question_answer62)
Function of suspensor of embryo is:
A)
Absorption of nourishment. done
clear
B)
Push the embryo into nutritive endosperm region. done
clear
C)
Formation of secondary embryos. done
clear
D)
All of the above done
clear
View Solution play_arrow
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question_answer63)
Wall of mature pollen gram consists or:
A)
Ektexine and endexine done
clear
B)
Tapetum and endothecium done
clear
C)
Exine and inline done
clear
D)
Foot and baculate layer done
clear
View Solution play_arrow
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question_answer64)
Which one of the following element is essential for the growth of pollen tube?
A)
Ca done
clear
B)
B done
clear
C)
Mg done
clear
D)
Mo done
clear
View Solution play_arrow
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question_answer65)
Isogamy is:
A)
Fusion of male and female gametes. done
clear
B)
Fusion of physiologically and morphologically similar gametes. done
clear
C)
Entry of pollen tube through integuments. done
clear
D)
None of the above done
clear
View Solution play_arrow
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question_answer66)
The insect pollinated pollen grain, tapetum helps in the development of:
A)
Sporopollenin done
clear
B)
Cellulose done
clear
C)
Pectin done
clear
D)
Pollen kit done
clear
View Solution play_arrow
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question_answer67)
At the time of anther dehiscence:
A)
Middle layers develop fibrous thickenings. done
clear
B)
Epidermis degenerates. done
clear
C)
Endothecium develops fibrous thickenings. done
clear
D)
Endothecium degenerates. done
clear
View Solution play_arrow
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question_answer68)
The given diagram refers to a T. S. of anther. Identify 1 to 5 respectively.
A)
Sporogenous tissue, tapetum, epidermis, middle layer, endothecium. done
clear
B)
Sporogenous tissue, epidermis, tapetum, middle layer, endothecium. done
clear
C)
Sporogenous tissue, epidermis, middle layer, tapetum, endothecium. done
clear
D)
Sporogenous tissue, tapetum, middle layer, epidermis, endothecium. done
clear
View Solution play_arrow
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question_answer69)
Give the of name the cell division type at A, B, C and D.
A)
A-Meiosis-I, B-Mitosis, C-Mitosis, D-Meiosis done
clear
B)
A-Meiosis-I, B-Meiosis-II, C-No division, D-Mitosis done
clear
C)
A-Mitosis, B-No 'division, C-Meiosis-II, D-Meiosis-I done
clear
D)
A-Mitosis, B-Mitosis, C-Meiosis-I, D-Meiosis-I done
clear
View Solution play_arrow
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question_answer70)
Apomixis is:
A)
Development of plants in darkness. done
clear
B)
Development of plants without fusion of gametes done
clear
C)
Inability to perceive stimulus for flowering. done
clear
D)
Effect of low temperature on plant growth. done
clear
View Solution play_arrow
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question_answer71)
Which of the following floral parts forms pericarp after fertilisation?
A)
Nucellus done
clear
B)
Outer integument done
clear
C)
Ovary wall done
clear
D)
Inner integument done
clear
View Solution play_arrow
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question_answer72)
Plumule is produced from the:
A)
Proembryo done
clear
B)
Hypophysis done
clear
C)
Apical octant done
clear
D)
micropylar octant done
clear
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question_answer73)
Flowers showing omithophily, represent few characteristics like:
A)
Blue flower with nectaries at base of corolla. done
clear
B)
Red sweet scented flower with nectaries. done
clear
C)
Bright red flower into thick inflorescence. done
clear
D)
White flowers with fragrance. done
clear
View Solution play_arrow
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question_answer74)
An angiospermic plant has to produce 88 viable ovules. How many meiotic divisions will be needed to produce equal number of female gametophytes by this plant?
A)
88 done
clear
B)
22 done
clear
C)
44 done
clear
D)
132 done
clear
View Solution play_arrow
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question_answer75)
In cross self fertilised plants, the flowers are first emasculated. Which organ of the plant is removed in this process?
A)
Ovary done
clear
B)
Ovules done
clear
C)
Stigmas done
clear
D)
Stamens or anthers done
clear
View Solution play_arrow
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question_answer76)
3-celled stage of the mature male gametophyte is reached:
A)
Before pollination done
clear
B)
after pollination done
clear
C)
During fertilisation done
clear
D)
after fertilization done
clear
View Solution play_arrow
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question_answer77)
Endothecium layer of anther lobes is present:
A)
Outside the epidermis done
clear
B)
inner to epidermis done
clear
C)
In the innermost layer done
clear
D)
in the middle region done
clear
View Solution play_arrow
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question_answer78)
How many pollen grains will be formed after meiotic division in ten microspore mother cells?
A)
10 done
clear
B)
20 done
clear
C)
40 done
clear
D)
80 done
clear
View Solution play_arrow
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question_answer79)
Pollination by water occurs in:
A)
Ceratophyllum done
clear
B)
Zostera done
clear
C)
Lemna done
clear
D)
All of these done
clear
View Solution play_arrow
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question_answer80)
Seed coat is derived from:
A)
Pericarp done
clear
B)
Epicarp done
clear
C)
Integuments of ovule done
clear
D)
Nucellus done
clear
View Solution play_arrow
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question_answer81)
Non-endospermic seeds are found in:
A)
Castor done
clear
B)
Rice done
clear
C)
Wheat done
clear
D)
Bean done
clear
View Solution play_arrow
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question_answer82)
The condition of maturation of stigma before anthers of the same flower is:
A)
Protandry done
clear
B)
Herkogamy done
clear
C)
Protogyny done
clear
D)
Prepotency done
clear
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question_answer83)
In a flowering plant, archesporium gives rise to:
A)
Only tapetum and sporogenous cells done
clear
B)
Only the wall of the sporangium done
clear
C)
Both wall and the sporogenous cells done
clear
D)
Wall and the tapetum done
clear
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question_answer84)
In the given diagram name the parts 1, 2, 3, 4 and 5.
A)
1-germpore,2-generadvecell,3-mtine,4-exine, 5 - vegetative cell done
clear
B)
1-germporc,2-generativecell,3-exine,4-mtine, 5 - vegetative cell done
clear
C)
1-mtine,2-exme,3-germpore,4-generativecell, 5 - vegetative cell done
clear
D)
1-exine, 2-intine, 3-vegetarivecell, 4-gemipore, 5 - generative cell done
clear
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question_answer85)
Which plant will lose its economic value, if its fruits are produced by induced parthenocarpy?
A)
Grape done
clear
B)
Pomegranate done
clear
C)
Orange done
clear
D)
Banana done
clear
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question_answer86)
Match column-I with column- II and select th correct answer using the codes given below.
| Column-I | | Column-II |
A. | Ovary | I. | Groundnut, mustard |
B. | Ovule | II. | Guava, orange, mango |
C. | Wall of ovary | III. | Pericarp |
D. | Fleshy fruits | IV. | Seed |
E. | Dry fruits | V. | Fruit |
A)
A-V; B-IV; C - III; D-II; E-I done
clear
B)
A-I; B-II; C-III; D-IV; E-V done
clear
C)
A-I; B-III; C-II; D-IV; E-V done
clear
D)
A-V; B-IV; C-I; D-II; E-III done
clear
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question_answer87)
The given diagram shows 2 plants of the same species. Identify the types of pollination indicated as \[{{P}_{1,}}{{P}_{2}}and{{P}_{3}}respectively.\]
A)
Allogamy, Chasmogamy, Cleistogamy done
clear
B)
Autogamy, Xenogamy, Geitonogamy done
clear
C)
Autogamy, Geitonogamy, Xenogamy done
clear
D)
Geitonogamy, Allogamy and Autogamy done
clear
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