How many meiotic divisions are necessary to produce $100$ pollen grains
How many meiotic divisions are necessary to produce $100$ pollen grains
- [AIPMT 1995]
- [AIIMS 1993]
- A
$100$
- B
$25$
- C
$50$
- D
$20$
Similar Questions
Make the correct pair :
Column $- I$
Column $- II$
A- Tapetum
i- Degenerate during development
B- Intine
ii- Resistant organic materials
C- Vegetative cell
iii- Pollen tube
D- Sporopollenin
iv- Provide nourishment to pollen grains
Make the correct pair :
| Column $- I$ | Column $- II$ |
| A- Tapetum | i- Degenerate during development |
| B- Intine | ii- Resistant organic materials |
| C- Vegetative cell | iii- Pollen tube |
| D- Sporopollenin | iv- Provide nourishment to pollen grains |
Ubisch bodies found in tapetal cell help in formation of
Ubisch bodies found in tapetal cell help in formation of
...........and.......... pollen loose viability within $30$ minutes
...........and.......... pollen loose viability within $30$ minutes
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
Pollen grains can be stored for several years in liquid nitrogen having a temperature of
- [NEET 2018]
Arrange the following terms in the correct developmental sequence: Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes
Arrange the following terms in the correct developmental sequence: Pollen grain, sporogenous tissue, microspore tetrad, pollen mother cell, male gametes