-
question_answer1)
Antheridia and archegonia are most reduced in
A)
Bryophyta done
clear
B)
Selaginella done
clear
C)
Ferns done
clear
D)
Pinus done
clear
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question_answer2)
Needle like foliage leaves are found in
A)
Mosses done
clear
B)
Selaginella done
clear
C)
Fern done
clear
D)
Pinus done
clear
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question_answer3)
Meroblastic type of embryo development takes place in
A)
Ferns done
clear
B)
Selaginella done
clear
C)
Pinus done
clear
D)
All the above done
clear
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question_answer4)
Pollination of pollen grains in Pinus takes place at
A)
One celled stage done
clear
B)
Two celled stage done
clear
C)
Three celled stage done
clear
D)
Four celled stage done
clear
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question_answer5)
Non-motile male gametes are formed in [MP PMT 2000]
A)
Funaria done
clear
B)
Selaginella done
clear
C)
Fern done
clear
D)
Pinus done
clear
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question_answer6)
Spur of Pinus sylvestris is
A)
Monofoliar done
clear
B)
Bifoliar done
clear
C)
Trifoliar done
clear
D)
Tetrafoliar done
clear
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question_answer7)
Popular dry fruit "chilgoza'' is produced by [CPMT 1995]
A)
Pinus sylvestris done
clear
B)
Pinus monophylla done
clear
C)
Pinus gerardiana done
clear
D)
Pinus roxburghii done
clear
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question_answer8)
In Pinus needle vascular bundles are
A)
Bicollateral done
clear
B)
Collateral and closed done
clear
C)
Collateral and open done
clear
D)
Concentric done
clear
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question_answer9)
Mesophyll tissue of Pinus needle is composed of
A)
Armed parenchyma done
clear
B)
Chlorenchyma done
clear
C)
Spongy parenchyma done
clear
D)
Transfusion tissue done
clear
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question_answer10)
The male cone of Pinus is modified [AFMC 1993]
A)
Long shoot done
clear
B)
Needle leaves done
clear
C)
Dwarf shoot done
clear
D)
None of the above done
clear
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question_answer11)
Which of the following structures in Pinus are haploid [CBSE PMT 1989; MP PMT 2002]
A)
Megaspore, integument, root done
clear
B)
Endosperm, megaspore, pollen grain done
clear
C)
Pollen grain, leaf, root done
clear
D)
Megaspore, endosperm, embryo done
clear
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question_answer12)
Pine wood consists of almost entirely [CPMT 1975]
A)
Tracheids done
clear
B)
Vessels done
clear
C)
Equal number of tracheids and vessels done
clear
D)
More vessels and less tracheids done
clear
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question_answer13)
Winged seeds are found in [BHU 1978, 81; CMC Vellore 1993; CPMT 1995]
A)
Cycas done
clear
B)
Pinus done
clear
C)
Papaver species done
clear
D)
None of the above done
clear
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question_answer14)
In Pinus seeds there are [MP PMT 1986; BHU 1979, 81; DPMT 1992]
A)
Two cotyledons done
clear
B)
One cotyledon done
clear
C)
Fleshy cotyledons done
clear
D)
Many cotyledons done
clear
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question_answer15)
Male prothallus (gametophyte) in Pinus is having [BHU 1983]
A)
1 prothallial cell done
clear
B)
2 prothallial cells done
clear
C)
4 prothallial cells done
clear
D)
A mass of cells done
clear
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question_answer16)
Among the following which does not belong to sporophytic generation in Pinus [DPMT 1983]
A)
Roots done
clear
B)
Endosperm done
clear
C)
Dwarf shoot done
clear
D)
Long shoot done
clear
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question_answer17)
In the embryo of Pinus rosette cells lie [BHU 1986]
A)
Above suspensor cells done
clear
B)
Between suspensor and embryonal cells done
clear
C)
Between primary and secondary suspensor cells done
clear
D)
Between embryonal and apical cells done
clear
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question_answer18)
Resin and turpentine are obtained from [JIPMER 1985; BHU 1988]
A)
Cycas done
clear
B)
Pinus done
clear
C)
Abies done
clear
D)
Cedrus done
clear
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question_answer19)
Which of the following is the best explanation for the excurrent (pyramidal) shape of Pinus (the branches giving the plant the appearance of a tall cone) [AIIMS 1981; JIPMER 1983]
A)
Competition among adjoining trees for sunlight done
clear
B)
The effect of auxins on growth of stem tips done
clear
C)
Adaptation for wind pollination done
clear
D)
Efficiency of water transport from ground to leaves done
clear
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question_answer20)
Of the following, the false character with respect to Pinus is [BHU 1982]
A)
Bract and ovuliferous scales done
clear
B)
Embryo with two cotyledons done
clear
C)
Resin canals in needles done
clear
D)
Tracheids with bordered pits done
clear
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question_answer21)
Cataphylls are [BHU 1991]
A)
Leaves of Selaginella done
clear
B)
Scaly leaves of Pinus done
clear
C)
Needles of Pinus done
clear
D)
Foliar leaves of Pinus done
clear
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question_answer22)
Male gametophyte of Pinus is found to be [BHU 1983]
A)
10 celled done
clear
B)
6 celled done
clear
C)
4 celled done
clear
D)
2 celled done
clear
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question_answer23)
Which of the following features are true for Pinus [JIPMER 1993]
A)
Haploid endosperm done
clear
B)
Bicilliated sperms done
clear
C)
Double fertilization done
clear
D)
Presence of antheridia done
clear
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question_answer24)
Which statement is correct with reference to Pinus [BHU 1991]
A)
It is of much economic value done
clear
B)
It is cosmopolitan in distribution done
clear
C)
If grows in deserts and exhibits xerophytic character done
clear
D)
If form deciduous trees in temperate region done
clear
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question_answer25)
Pinus produces [BHU 1984, 91; CMC Vellore 1994; CPMT 1995]
A)
No seeds done
clear
B)
Flowers done
clear
C)
No vascular tissues done
clear
D)
Naked seeds in cones done
clear
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question_answer26)
In Pinus, the spur (dwarf shoot) has [CPMT 1984; MP PMT 1993]
A)
One needle done
clear
B)
Two needles done
clear
C)
Three needles done
clear
D)
All correct done
clear
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question_answer27)
The secondary wood of Pinus is characterised by [MP PMT 1993]
A)
Presence of resin cells done
clear
B)
Presence of resin ducts done
clear
C)
Absence of resin ducts done
clear
D)
Presence of vessels done
clear
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question_answer28)
Which one of the following alternatives represents the gametophytic phase in Pinus [MP PMT 1994]
A)
Pinus plant done
clear
B)
Zygote done
clear
C)
Micro and megaspores done
clear
D)
Male and female cones done
clear
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question_answer29)
Needles of Pinus possess meristem at
A)
Apical portion done
clear
B)
Intercalary portion done
clear
C)
Basal portion done
clear
D)
Lateral portion done
clear
View Solution play_arrow
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question_answer30)
In the embryo of Pinus, rosette cells lie
A)
Above suspensor cells done
clear
B)
Between suspensor and embryonal cells done
clear
C)
Between primary and secondary suspensor cells done
clear
D)
Between embryonal cells and apical cells done
clear
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question_answer31)
The gametophytes of Pinus are protected from dessication by living in
A)
Moist soil done
clear
B)
Moist tissue of sporophyte in the cone done
clear
C)
Bogs and marshes done
clear
D)
The rainy season only done
clear
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question_answer32)
In Pinus, the terminal portion of microsporophyll of male cone is called
A)
Embryo sac done
clear
B)
Bract scale done
clear
C)
Ovule done
clear
D)
Apophysis done
clear
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question_answer33)
The edible part of seed of Pinus is
A)
Epispore done
clear
B)
Endosperm done
clear
C)
Perisperm done
clear
D)
Pericarp done
clear
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question_answer34)
Microsporophyll of Pinus is equivalent to
A)
Pollen grain of angiosperms done
clear
B)
Stamen done
clear
C)
Male gametophyte done
clear
D)
Inflorescence done
clear
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question_answer35)
The megasporophyll of Pinus consists of
A)
Both bract and ovuliferous scales done
clear
B)
Only bract scales done
clear
C)
Only ovuliferous scales done
clear
D)
None of the above done
clear
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question_answer36)
The foliage leaves or needles in Pinus are borne by
A)
Branches of unlimited growth done
clear
B)
Branches of limited growth done
clear
C)
Branches of limited and unlimited growth done
clear
D)
Female cones done
clear
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question_answer37)
What nature does, acicular nature of Pinus needle depicts
A)
Mesophytic done
clear
B)
Xerophytic done
clear
C)
Hydrophytic done
clear
D)
Sporophytic done
clear
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question_answer38)
Female gametophyte (endosperm) in Pinus is formed
A)
Before pollination done
clear
B)
After pollination done
clear
C)
After fertilization done
clear
D)
None of the above done
clear
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question_answer39)
The wood obtained from Pinus plant is used for
A)
Furniture done
clear
B)
Building purposes done
clear
C)
Match boxes done
clear
D)
All the above done
clear
View Solution play_arrow
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question_answer40)
Integument in Pinus ovule is
A)
Haploid done
clear
B)
Diploid done
clear
C)
Triploid done
clear
D)
Tetraploid done
clear
View Solution play_arrow
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question_answer41)
Ovules in Pinus are generally
A)
Anatropous with four integuments done
clear
B)
Anatropous with one integument done
clear
C)
Amphitropous with three integuments done
clear
D)
Orthotropous with two integuments done
clear
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question_answer42)
In Pinus megaspore on germination forms
A)
Pollen tube with two motile sperms done
clear
B)
Endosperm with archegonia done
clear
C)
Endosperm with sperms done
clear
D)
Endosperm with embryo sac done
clear
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question_answer43)
Endosperm of Pinus is
A)
Male gametophyte done
clear
B)
Female gametophyte done
clear
C)
Sporophyte done
clear
D)
None of the above done
clear
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question_answer44)
Pinus shows [CBSE PMT 2001]
A)
Simple polyembryony done
clear
B)
Cleavage polyembryony done
clear
C)
Both simple and cleavage polyembryony done
clear
D)
None of the above done
clear
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question_answer45)
Pinus seed shows
A)
Hypogeal germination done
clear
B)
Epigeal germination done
clear
C)
Dormancy done
clear
D)
None of the above done
clear
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question_answer46)
Female cone of Pinus can be compared to which part of the plant
A)
Flower done
clear
B)
Megasporophyll done
clear
C)
Inflorescence done
clear
D)
Microsporophyll done
clear
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question_answer47)
Pinus shows [CBSE PMT 2001]
A)
Heterospory done
clear
B)
Polyembryony done
clear
C)
Homospory done
clear
D)
One type of branching done
clear
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question_answer48)
The part of the ovule in the Pinus which has megaspore mother cells dividing to form haploid megaspores is
A)
Nucellus done
clear
B)
Embryo done
clear
C)
Gametangia done
clear
D)
Gametophore done
clear
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question_answer49)
The seed of Pinus represents
A)
One generation done
clear
B)
Two generations done
clear
C)
Three generations done
clear
D)
Four generations done
clear
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question_answer50)
The spur of Pinus occelsa is
A)
Unifoliar done
clear
B)
Bifoliar done
clear
C)
Trifoliar done
clear
D)
Pentafoliar done
clear
View Solution play_arrow
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question_answer51)
The winged pollen grain of Pinus sp. are produced in [MP PMT 1997]
A)
Pollen chamber done
clear
B)
Anther done
clear
C)
Tapetum done
clear
D)
Microsporangium done
clear
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question_answer52)
Which of the following tissue is present in the leaves of Pinus and serve to conduct water and food [CPMT 1999, 2001]
A)
Xylem done
clear
B)
Phloem done
clear
C)
Transfusion tissue done
clear
D)
Conducting tissue done
clear
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question_answer53)
Annual rings are well seen in [Pune CET 1998]
A)
Selaginella stem done
clear
B)
Cycas wood done
clear
C)
Pinus wood done
clear
D)
All the above done
clear
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question_answer54)
The microsporophylls of Pinus has [Pune CET 1998]
A)
Many microsporangia done
clear
B)
No microsporangia done
clear
C)
2 microsporangia done
clear
D)
Only one microsporangium done
clear
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question_answer55)
Time lapse between fertilization and seed formation in Pinus is [Pune CET 1998]
A)
6 years done
clear
B)
2 years done
clear
C)
1 ½ years done
clear
D)
1 year done
clear
View Solution play_arrow
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question_answer56)
The wood of pinus is [MP PMT 2000]
A)
Pycnoxylic and monoxylic done
clear
B)
Pycnoxylic and heteroxylous done
clear
C)
Manoxylic and homoxylous done
clear
D)
Manoxylic and heteroxylous done
clear
View Solution play_arrow
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question_answer57)
Winged pollen grain is the characteristic feature of [BVP 2002; MP PMT 2004]
A)
Cycas done
clear
B)
Ephedra done
clear
C)
Gnetum done
clear
D)
Pinus done
clear
View Solution play_arrow
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question_answer58)
A microsporophyll in Pinus has [Kerala PMT 2004]
A)
One microsporangium on the adaxial side done
clear
B)
One microsporangium on the abaxial side done
clear
C)
Two microsporangia on the abaxial side done
clear
D)
Two microsporangia on the adaxial side done
clear
E)
Four microsporangia on the lower side done
clear
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question_answer59)
Plant of pine is
A)
Annual herb done
clear
B)
Biannual herb done
clear
C)
Evergreen tree done
clear
D)
Deciduous tree done
clear
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question_answer60)
The giant tree among the pines belongs to [RPMT 1999]
A)
Cedrus done
clear
B)
Pinus done
clear
C)
Dalbergia done
clear
D)
Sequoia done
clear
View Solution play_arrow
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question_answer61)
Siphonogamous fertilization takes place in
A)
Bryophytes done
clear
B)
Selaginella done
clear
C)
Fern done
clear
D)
Pinus done
clear
View Solution play_arrow
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question_answer62)
Female cone of Pinus is considered equivalent to
A)
Dwarf shoot done
clear
B)
Long shoot done
clear
C)
Needles done
clear
D)
Scale leaves done
clear
View Solution play_arrow
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question_answer63)
In Pinus female gametophyte develops only from
A)
Upper most haploid megaspore done
clear
B)
The lower most haploid megaspore done
clear
C)
Penultimate megaspore done
clear
D)
The 3rd megaspore done
clear
View Solution play_arrow
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question_answer64)
In Pinus only lower part of oospore is concerned with the development of embryo, such development is [CBSE PMT 1993]
A)
Meroblastic done
clear
B)
Periblastic done
clear
C)
Mesoblastic done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer65)
The pollination in Pinus is [AFMC 1995]
A)
Entomophilous done
clear
B)
Anemophilous done
clear
C)
Hydrophilous done
clear
D)
Malscophilous done
clear
View Solution play_arrow
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question_answer66)
In Pinus male and female reproductive structures occur [MP PMT 1996]
A)
On different branches of the same plant done
clear
B)
On different plants done
clear
C)
On same branch done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer67)
The seed of Pinus sp. is [MP PMT 1997]
A)
Uneconomic and nonendospermic done
clear
B)
Abaxial and rounded done
clear
C)
Adaxial and endospermic done
clear
D)
Hypogeal and monocotyledonous done
clear
View Solution play_arrow
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question_answer68)
Pinus is [MP PMT 1997, 99]
A)
Deciduous done
clear
B)
Dioecious done
clear
C)
Monoecious done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer69)
In Pinus male gametes are produced in the pollen tube by the division of which of the following cells [BHU 2001]
A)
Body cell done
clear
B)
Stalk cell done
clear
C)
Tube cell done
clear
D)
Prothallial cell done
clear
View Solution play_arrow
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question_answer70)
Seed of Pinus shows three generations as [J & K CET 2002]
A)
Parent sporophyte, gametophyte and future sporophyte done
clear
B)
Parent gametophyte, sporophyte and future gametophyte done
clear
C)
Parent sporophyte, sporophyte, future gametophyte done
clear
D)
None of these done
clear
View Solution play_arrow
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question_answer71)
The wing in Pinus seed originates from [AIIMS 1987; MP PMT 1993]
A)
Integument done
clear
B)
Adaxial surface of ovuliferous scale done
clear
C)
Bract scale done
clear
D)
Cone axis done
clear
View Solution play_arrow
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question_answer72)
Transfusion tissue, a modified vascular tissue is present in the leaves of [BHU 1985; CBSE PMT 1998]
A)
Pinus done
clear
B)
Dryopteris done
clear
C)
Lycopodium done
clear
D)
Dalbergia done
clear
View Solution play_arrow