MCQ practice · SSC Biology Board questions · Chapter 11: Reproduction in Organisms
By which method are gametes formed?
Think it through first, then pick an option.
- a Fragmentation
- b Amitosis
- c Mitosis
- d Meiosis
Answer and explanation
Correct answer: d Meiosis
The reproductive mother cell divides by meiosis to make gametes, and the chromosome number is halved.
Why the other options are wrong
- a Fragmentation: Fragmentation is a way of asexual reproduction; no gametes are made by it.
- b Amitosis: Amitosis is direct division and does not halve the chromosome number, which gamete formation needs.
- c Mitosis: In mitosis the daughter cells keep the mother cell's chromosome number, but a gamete needs half of it, so this is not the method.
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