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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: - If the cell of root in wheat plant have 42 chromosomes then the number
- Restriction endonuclease cleaves
- Dormancy of seed is broken by
- Living cells placed in isotonic solution 09 saline retain their size and shape
- In genetic engineering, DNA fragments are joined through
Topics: Reproduction In Plants
(48)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the cell of root in wheat plant have 42 chromosomes then the number
- Restriction endonuclease cleaves
- Dormancy of seed is broken by
- Living cells placed in isotonic solution 09 saline retain their size and shape
- In genetic engineering, DNA fragments are joined through
Topics: Reproduction In Plants (48)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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