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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: - Cytoplasm and nucleus are separated by a membrane which is
- Which one of the following elements is not an essential micronutrient for plant growth?
- Retina of eye is analogous to which part of camera?
- What is the correct sequence of sperm formation?
- In which of the following animals the body cavity is a true coelom?
Topics: Reproduction In Plants
(48)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Cytoplasm and nucleus are separated by a membrane which is
- Which one of the following elements is not an essential micronutrient for plant growth?
- Retina of eye is analogous to which part of camera?
- What is the correct sequence of sperm formation?
- In which of the following animals the body cavity is a true coelom?
Topics: Reproduction In Plants (48)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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