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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: - Which of the following is a flagellated algae
- Which of the following ions help in muscle contraction
- The enzyme recombinase is required at which stage of meiosis:
- Omnis cellulae cellula was stated by
- The common bottle cork is a product of :
Topics: Reproduction In Plants
(48)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which of the following is a flagellated algae
- Which of the following ions help in muscle contraction
- The enzyme recombinase is required at which stage of meiosis:
- Omnis cellulae cellula was stated by
- The common bottle cork is a product of :
Topics: Reproduction In Plants (48)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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