Between prophase I and metaphase I, a process known as crossing over occurs in which two homologous non-sister chromatids join up and exchange various pieces of genetic material to create two recombinant chromosome sister chromatids.
When genetic material is switched between two chromosomes, this process is known as crossing over.
It is in charge of causing genetic variation among members of a species.
Only the reproductive cells known as gametes undergo this process.
The steps involved in crossing over are as follows:

1) Synapsis.

2) Chromosome duplication

3) Crossing over.

4) Terminalizataion.

Learn more about crossing over here :

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2 years ago

Veseljchak [2.6K]

Answer:

#8. B

#9. A

#11. D

#13. C

Explanation:

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4 years ago