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olchik [2.2K]
3 years ago
8

Which of the following statements is true of crossing-over?

Biology
2 answers:
Luba_88 [7]3 years ago
6 0

Answer: Crossing-over contributes to genetic diversity or variation.

Crossing-over is when homologous* chromosomes exchange genes. This result in different gene combinations.

-------

<em>*A pair of matching chromosomes. They have the same genes but can have different versions. </em>

Paladinen [302]3 years ago
4 0

Answer:

A. Crossing-over contributes to genetic diversity or variation.

Explanation:

Crossing over is the process of exchange of genetic material between non sister chromatids of homologous chromosomes and creates new gene combinations. It occurs during pachytene stage of prophase of meiosis I and forms gametes with genetic variations. The new gene combinations may or may not be beneficial for the organism.

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