- 1(current)
Q. No.Which of the following is the correct description of an anther?
| 1. | Pollen sac |
| 2. | The pollen-producing reproductive organ of a flower |
| 3. | The male gametophyte of angiosperms |
| 4. | The part of a stamen that contains the pollen |
Subtopic: Stamen: Anther |
57%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
| Assertion (A): | Cells of tapetum have more than one nucleus. |
| Reason (R): | They undergo meiosis without cytokinesis. |
Options:
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Stamen: Anther |
55%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
Consider the given two statements:
| Statement I: | In over 60 per cent of angiosperms, pollen grains are shed at 2-celled stage. |
| Statement II: | In the remaining species, the vegetative cell divides mitotically to give rise to the two male gametes before pollen grains are shed (3-celled stage). |
| 1. | Statement I is correct; Statement II is correct |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Statement I is correct; Statement II is incorrect |
| 4. | Statement I is incorrect; Statement II is incorrect |
Subtopic: Monocarpic & Polycarpic | Stamen: Anther | Stamen: Microsporangium |
55%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.