What happens during crossing over? Select 2

Question

chiasma formation between of non-sister chromatids of homologous and exchange of the genetic material.

results in recombinant chromosomes that lead to increased variation

polyploidy of chromosome sets occurs during Metaphase I

results in diploid cells being made that decrease the variation in offspring

Answer 1

The correct selections regarding what happens during crossing over are:

1. Chiasma formation between non-sister chromatids of homologous and exchange of the genetic material.
2. Results in recombinant chromosomes that lead to increased variation.

Crossing over occurs during prophase I of meiosis, where homologous chromosomes exchange segments of DNA, resulting in new combinations of genes and increased genetic diversity in the resulting gametes.