Last Updated On 01-06-2023 - By Jeesha Sara
These processes are necessary for the complete development of male gametophyte from pollen mother cell.
1)
One meiotic and two mitotic division
2)
One meiotic cell division and one mitotic cell division
3)
two meiotic cell division and one mitotic cell division
4)
two meiotic cell division
These processes are necessary for the complete development of male gametophyte from pollen mother cell.
1)
One meiotic and two mitotic division
2)
One meiotic cell division and one mitotic cell division
3)
two meiotic cell division and one mitotic cell division
4)
two meiotic cell division
Question ID - 100320 :-
These processes are necessary for the complete development of male gametophyte from pollen mother cell.
1)
One meiotic and two mitotic division
2)
One meiotic cell division and one mitotic cell division
3)
two meiotic cell division and one mitotic cell division
4)
two meiotic cell division
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These processes are necessary for the complete development of male gametophyte from pollen mother cell. |
|
|
1) |
One meiotic and two mitotic division |
|
2) |
One meiotic cell division and one mitotic cell division |
|
3) |
two meiotic cell division and one mitotic cell division |
|
4) |
two meiotic cell division |
During microsporogenesis, the sporogeneous cells may directly acts as microspore mother cells or pollen mother cells or PMCs. Each PMC, by a meiotic division, gives rise to a group of four haploid microspores, which are combinedly referred to as microspore tetrad.
The first mitotic division in a pollen grain or microspore results into two unequal cels. The large is the vegetative cell, which eventually forms the pollen tube. The smaller one is the generative cells which produce the male gametophyte by another mitosis.
Next Question :
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Occurrence of more than four spores from a spore mother cell is called |
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1) |
Polysiphony |
2) |
Polyspermy |
3) |
Polyspory |
4) |
Polyembryony |
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