- A Crossing over
- B Linkage
- C Reconstruction
- D Breakage
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Answer:
A
Explanation:
Linkage is the tendency of two or more than two genes to stay together during inheritance. It can be broken by the process of homologous recombination, which occurs during crossing over in the pachytene stage of prophase I. This results in the exchange of genetic material between homologous chromosomes, leading to a new combination of alleles.