Question

which of the following statements regarding genetic diversity is false?

1. genetic diversity is increased by random fertilization during sexual reproduction.
2. genetic diversity is increased by independent assortment of chromosomes at metaphase i.
3. genetic diversity is increased by mitosis.
4. genetic diversity is increased by crossing over during meiosis.

Explanation:

• Option 1: Random fertilization during sexual reproduction combines gametes from two parents, increasing genetic diversity.
• Option 2: Independent assortment of chromosomes at metaphase I leads to different combinations of chromosomes in gametes, enhancing genetic diversity.
• Option 3: Mitosis produces daughter cells that are genetically identical to the parent cell. It does not increase genetic diversity.
• Option 4: Crossing over during meiosis exchanges genetic material between homologous chromosomes, increasing genetic diversity.

Answer:

1. Genetic diversity is increased by mitosis.