Intine is made up of |
|||||||
a) |
Cellulose |
b) |
Pectin |
c) |
Both (a) and (b) |
d) |
Protein |
Intine is made up of |
|||||||
a) |
Cellulose |
b) |
Pectin |
c) |
Both (a) and (b) |
d) |
Protein |
(c) Pollen grain are generally 25-50 Pollen grains have two main layers (i) Outer Layer It is also called exine. It is made up of sporopollenin. It is hard and protective in nature. Due to sporopollenin pollen can with stand extreme temperatures. (ii) Inner layer It is also called intine. It is made up of cellulose and pectin. It is very thin as compared to the outer layer |
The arrangement of the nuclei in a normal embryo sac in the dicot plants, is |
|||||||
a) |
2+4+2 |
b) |
3+2+3 |
c) |
2+3+3 |
d) |
3+3+2 |
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