Without genetic variation, the mechanisms of evolutionary change will not occur. There are several sources of genetic variation within a breeding population: sexual reproduction, mutation, and gene flow. Specifically, sexual reproduction contributes to genetic variation and as a result, evolution, through recombination. Describe recombination and analyze how it contributes to genetic variability. Choose ALL that apply.

Question

Responses
A During meiosis, homologous chromosome exchange pieces of genetic information via recombination.During meiosis, homologous chromosome exchange pieces of genetic information via recombination.
B Recombination creates new combination of genes that did not exist before.Recombination creates new combination of genes that did not exist before.
C Recombination creates daughter cells with the haploid chromosome number.Recombination creates daughter cells with the haploid chromosome number.
D Chromosomes post-recombination are not identical to either parent’s genetic information.Chromosomes post-recombination are not identical to either parent’s genetic information.
E Meiosis is preceded by DNA recombination of chromosomes in the nucleus of the mother cell which results in genetic mutations.

Answer 1

A. During meiosis, homologous chromosome exchange pieces of genetic information via recombination.
B. Recombination creates new combination of genes that did not exist before.
D. Chromosomes post-recombination are not identical to either parent’s genetic information.
E. Meiosis is preceded by DNA recombination of chromosomes in the nucleus of the mother cell which results in genetic mutations.