461.
In gymnosperms, the pollination is
A
Anemophilous - micropylar
B
Anemophilous- stigmatic
C
Entomophilous-microplyar
D
Entomophilous - stigmatic
Answer :
Anemophilous - micropylar
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462.
Which of the following is commonly known as "Chilgoza pine
A
Pinus roxburghii
B
P. strobus
C
P. gerardiana
D
P. sylvestris
Answer :
P. gerardiana
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463.
In Ulotrhix, zoospores are liberated by
A
Degeneration of lateral walls
B
Formation of pore in lateral wall
C
Gelatinisation of lateral wall
D
Gelatisistion of all cell wall
Answer :
Formation of pore in lateral wall
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464.
Wings of Pinus pollen grains are
A
Multicellular
B
Unicellular
C
Acellular
D
Coenocytic
Answer :
Acellular
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465.
Compared with the gametophytes of the bryophytes the gametophytes of vascular plant are
A
smaller but have larger sex organs
B
larger but have smaller sex organs
C
larger and have larger sex organs
D
smaller and have smaller sex organs
Answer :
smaller but have larger sex organs
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466.
In Funaria, the antherozoids swin water to reach upto the archegonium for the process of fertilization. this type of movement is known as
A
Chemoropic
B
Chemotatctic
C
Thermotatic
D
Phototctic
Answer :
Chemotatctic
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467.
Sprophyte of Riccia possess
A
Foot & Seta
B
Foot and capsul
C
Foot, seta & capsule
D
Capsule only
Answer :
Capsule only
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468.
Classification of algae is mainly based up on
A
Reproductive organs
B
Structure of spores
C
Pigments
D
Stored food
Answer :
Pigments
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469.
Calyptra of Funaria arises from
A
Capsule
B
Antheridium
C
Columella
D
Archegonium
Answer :
Archegonium
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470.
Which of the following is commonly known as "Blue pine
A
Pinus roxburghii
B
P.Strobus
C
P.Wallichiana
D
P.Sylvestris
Answer :
P.Wallichiana
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