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Which one of the following statements is wrong?
Options
(a) When pollen is shed at two-celled stage, doubled fertiliztion does not take place
(b) Vegetative cell is larger thean generative cell
(c) Pollen graints in some plants remain viable for months
(d) Intine is made up of cellulose and pectin
Correct Answer:
When pollen is shed at two-celled stage, doubled fertiliztion does not take place
Explanation:
In over 60 per cent of angiosperms, pollen grains are shed at cell 2-celled stage. In the remaining species the genrative cell divides mitotically to give rise to the two male gamets before pollen grains are shed (3-celled stage).
Related Questions: - A characteristic fruit,found in members of family Poaceae in which pericarp
- Simultaneous movement of two molecules across a membrane in the same direction
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Topics: Reproduction In Plants
(48)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A characteristic fruit,found in members of family Poaceae in which pericarp
- Simultaneous movement of two molecules across a membrane in the same direction
- Random unidirectional change in allele frequencies that occurs by chance
- Consider the following statements (A-D) about organic farming
- Four healthy people in their twenties got involved in injuries resulting in damage and death
Topics: Reproduction In Plants (48)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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