361.
In Selaginella, the edaxial outgrowth, develops from the base of leaf, is called
A
Ligule
B
Velum
C
Rhizophore
D
Glassopodium
Answer :
Ligule
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362.
Professor Birbal Sahani discovered a fossil plant from 100 millions years old fossil forest at Rajmahal Hills, Bihar, This plant was
A
Rhynia
B
Horneophyton
C
Williamsonia
D
Red alga
Answer :
Williamsonia
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363.
Rihizophore is not a true root because it is
A
Endogenous
B
Exogenous
C
Intermediate
D
None of the above
Answer :
Exogenous
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364.
In which stage of the male gametophyte of Selaginella, pollination take place
A
3-celled stage
B
5-celled stage
C
13-celled stage
D
2-celled stage
Answer :
13-celled stage
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365.
Which of the following statement is true for algae
A
Algae have root, stem and leaves
B
Algae have true root but lack leaves
C
Algae have rhizoides and leaves
D
Body of algae is thallus
Answer :
Body of algae is thallus
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366.
Sexual reproduction in Spirogyra is an advanced feature because it shows
A
physiologically differentiated sex organs
B
different sizes of motile sex organs
C
same size of motile sex organs
D
morphologically different sex organs
Answer :
physiologically differentiated sex organs
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367.
The characteristic feature of gymnosperm is
A
Seeds are naked
B
Fruits are absen
C
True carpel absent
D
All of the above
Answer :
All of the above
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368.
In Pteridium, main plant body represents
A
Sprophytic generation
B
Gametophytic generation
C
None of the above
D
May be sprophyte
Answer :
Sprophytic generation
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369.
Ulothrix is a green algae because
A
It has a cell wall
B
Each cell ahs a single nucleus
C
Each cell has single chloroplast
D
It has chl 'a', chl 'b', β-carotene & xanthophll
Answer :
It has chl 'a', chl 'b', β-carotene & xanthophll
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370.
Spores do not from protonema but directly grow into flat branching thallus in
A
Liverworts
B
Mosses
C
Ferns
D
Gymnosperms
Answer :
Liverworts
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