Two of the main drivers of genetic variation are mutations and genetic recombination. During which process can these two events occur?

Question

binary fission

meiosis

mitosis

fertilization

Answer 1

The two main drivers of genetic variation, mutations and genetic recombination, primarily occur during meiosis. During meiosis, genetic recombination occurs through processes such as crossing over, where homologous chromosomes exchange genetic material, leading to new combinations of alleles. Additionally, mutations can happen during DNA replication that occurs prior to meiosis. Therefore, meiosis is the correct answer.