In life cycle of Pinus megaspores produced by megasporangium divide into 4 megaspores by__________________?
Correct answer: B. Meiosis
- A. Mitosis
- B. Meiosis
- C. Both depending upon the conditions
- D. None of these
Explanation
The diploid megaspore mother cell in Pinus undergoes meiosis, reducing its chromosome number and producing four haploid megaspores. Mitosis produces genetically similar cells without reducing chromosome number, so students may choose it if they overlook the reduction division.
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