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Sexual reproduction increases genetic variability in organisms. One mechanism used during sexual reproduction to increase variability...

Sexual reproduction increases genetic variability in organisms. One mechanism used during sexual reproduction to increase variability in offspring is crossing over. Which one of the following statements best describes the process of crossing over?

Select one:

a. The fertilization of the zygote

b. The passage of the sperm thru the egg cell wall

c. The exchange of homologous regions between maternal and paternal chromosomes

d. The random alignment of homologous chromosomes during metaphase

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