Last Updated On [03-11-2023]
A mature pollen grain of 
has
a)
2 cells
b)
3 cells
c)
4 cells
d)
5 cells
A mature pollen grain of has
a)
2 cells
b)
3 cells
c)
4 cells
d)
5 cells
Question ID - 1591 :-
A mature pollen grain of has
a)
2 cells
b)
3 cells
c)
4 cells
d)
5 cells
|
A mature pollen grain of |
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|
a) |
2 cells |
b) |
3 cells |
c) |
4 cells |
d) |
5 cells |
|
(c) In |
the microspore nucleus divides by a periclinal wall and forms a very small prothallial cell and large central cell. The central cell cuts off a second prothallial cell and antheridial cell. The nucleus of the antheridial cell divides to form generative cell and tube cell. Thus, the pollen grain of 
is sheded at four-celled stage when it consists of two vegetative prothallial cells, a generative cell and a tube cell.Next Question :
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Mannitol is reserve food in |
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|
a) |
Rhodophyceae |
b) |
Chlorophyceae |
c) |
Phaeophyceae |
d) |
Xanthophyceae |
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