Lynemartyyer Lynemartyyer

13-09-2016
Biology

contestada

When crossing-over takes place, chromosomes
a. exchange corresponding segments of DNA.
b. produce new genes.
c. decrease in number.
d. mutate in the first division.

Respuesta :

taskmasters taskmasters

15-09-2016

I think the correct answer from the choices listed above is option A. When crossing-over takes place, chromosomes exchange corresponding segments of DNA. Corresponding genes on non-sister chromatids are exchanged at chiasmata. Hope this answers the question.

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