Question

which of the following is not a source of genetic variation? mutation crossing over independent assortment mitosis

Explanation:

• Mutation introduces changes in DNA sequence, creating new genetic variants.
• Crossing over swaps genetic material between homologous chromosomes during meiosis, reshuffling alleles.
• Independent assortment randomly arranges chromosomes during meiosis, leading to unique allele combinations in gametes.
• Mitosis produces genetically identical daughter cells, with no mechanism to generate new genetic variation.

Answer:

D. Mitosis