Heterosis can be fixed by___________________?
Correct answer: B. All the above
- A. Apomixis
- B. All the above
- C. Asexual reproduction
- D. Polyploidy
Explanation
Heterosis can be maintained across generations through apomixis or other asexual reproduction, while polyploidy may also help preserve hybrid vigor in suitable crops. Thus, all the listed methods are treated as ways of fixing heterosis.
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