521.
What is the intermediate state in the development of embryo of Pinus
A
Protonema
B
Polyembryony
C
Proembryo
D
Protocorm
Answer :
Proembryo
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522.
Cell wall of Spirogyra is
A
One layered
B
Two layered
C
Three layered
D
Four layered
Answer :
Two layered
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523.
Vesicle of zoospores is derived from
A
Propectin
B
Pectin
C
Cellulose
D
Cytoplasm
Answer :
Cellulose
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524.
The development of embryo is Pinus is
A
Discoblastic
B
Meroblastic
C
Periblatic
D
Mesoblastic
Answer :
Meroblastic
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525.
Young fern leaves and rhizome are protected by
A
Root cap
B
Ramenta
C
Roots
D
Leaf bases
Answer :
Ramenta
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526.
Antherozoids of Riccia are
A
Long, curved and multiflagellate
B
Small and non-flagellate
C
Small, curved (comma shaped) and biflagellate
D
Rod shaped and biflagellate
Answer :
Small, curved (comma shaped) and biflagellate
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527.
"Agar-agar" is obtained from
A
Green Algae
B
Red Algae
C
Brown Algae
D
Yellow green Algae
Answer :
Red Algae
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528.
The 'amphibians' of plant kingdom are
A
unicellular motile algae
B
multicellular non-motile algae
C
bryophytes with simple internal organization
D
pteridophytes with complex internal organization not reaching Angiosperm level
Answer :
bryophytes with simple internal organization
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529.
In pinus roxburghii, the common pine tree Microsporophyll are having
A
2 microsporangia on adaxial side
B
4 microsporangia on adaxial side
C
2 microsporangia on adaxial side
D
4 microsporangia on adaxial side
Answer :
2 microsporangia on adaxial side
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530.
Heterospory and ligulate leaves occur in
A
Selaginella
B
Pteridium
C
Funaria
D
Riccia
Answer :
Selaginella
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