621.
In Pteridium, antheridium and archegonium are respectively
A
Stalkless and stalked
B
Stalked and stalkles
C
Both stalked
D
Both stalkless
Answer :
Both stalkless
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622.
If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?
A
nature of stored food materials in the cell
B
structural organization of thallus
C
chemical composition of the cell wall
D
types of pigments present in the cell
Answer :
types of pigments present in the cell
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623.
How many thalli (filaments) are produced from the germination of a zygospore of Ulothrix
A
1-4
B
4-16
C
16-32
D
4-64
Answer :
4-16
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624.
Which of the following is bryophte
A
Funaira
B
Volvox
C
Chlorella
D
Spirullina
Answer :
Funaira
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625.
True and false indusua can be differentiated on the basis of
A
Origin
B
Function
C
Structure
D
All of the above
Answer :
Origin
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626.
In Ulothrix, Zygote is
A
Quadriflagellate
B
Biflagellate
C
Uniflagellate
D
Aflagellate
Answer :
Quadriflagellate
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627.
Which one of the following is wrong about Chara?
A
Upper oogonium and lower round antheridium
B
Globule and nucule present on the same plant
C
Upper antheridium and lower oogonium
D
Globule is male reproductive structure
Answer :
Upper antheridium and lower oogonium
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628.
Which structure protects apical meristem in Riccia
A
Apical notch
B
Scales
C
Primordial leaves
D
A and B both
Answer :
Scales
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629.
Plants having vascular tissues but lacking seeds are
A
Bryophyta
B
Pteridophyta
C
Gymnosperms
D
Angiosperms
Answer :
Pteridophyta
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630.
Double fertilization takes place in
A
Angiosperms
B
Gymnosperms
C
Spermatophyta
D
Embryophta
Answer :
Angiosperms
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