Question

Meiosis increases genetic diversity by which of the following? Choose all that apply.

1. Crossing over
2. Aligning at the midline
3. Diving into two cells
4. Independent assortment

Answer 1

meiosis is the process by which diploid cells divide to produce four haploid cells.

two processes during meiosis increase diversity.

1) crossing over: crossing over is the exchange of genetic material between non-sister chromatids of homologous chromosomes this changes the allele combination in the chromatids.

2) independent assortment: during meiosis I the homologous chromosomes are separated, during prophase I homologous chromosomes pair up and then during metaphase these paired homologous chromosomes align along the metaphase plate such that any one of the chromosomes can move to the opposite pole, so the daughter cells can get any one chromosome from the homologous pair.

so the answers are a) crossing over

d) independent assortment