PSY355H5 Study Guide - Final Guide: Homologous Chromosome, Meiosis, Mitosis
Document Summary
Genetic recombination is the reshuffling of genes from generation to generation. Body or somatic cells divide by a process known as mitosis, in which normally no recombination takes place. Mitosis results in two diploid cells that are in all respects identical to the cell from which they have come. On the other hand in the gonads during gamete formation (i. e. egg and sperm generation) the progenitor cells divide from a different process known as meiosis. Mitosis: the process of cell division that produces daughter cells that are genetically identical to the parent cells. Each of the chromosomes is duplicated and during mitosis one copy of each migrates to each of the two daughter cells. There is no exchange of material i. e. no recombination between the sister chromosomes. The two daughter cells are diploid carrying an exact copy of the chromosomes found in the progenitor cells.
