ACCT 2000 Chapter : Kimmel 4e 2000 And 2001 Chapter 2 Student Version
Document Summary
Homologous chromosomes have the same sequence of genes. Centromeres the constricted part of a chromosome that holds together two chromatids. Crossing over the physical exchange of a segment of the chromosome between homologous chromosomes. Mitosis: non sex-cells undergo mitosis, functions, growth of an organism, maintenance of organs, produce cells that are genetically identical to parent cells : ultimate function. Interphase: 2 pairs of homologous chromosomes : 1 from mother and 1 from father, the genes are active, the chromosomes duplicate by crossing over (replication) Metaphase: chromosomes align independently from each other in the center of the cell. Anaphase: the centromeres divide and the two chromatids are now physically unbound from each other and migrate to opposite sides of the cell. Telophase: the chromatids divide into two different cells. The results of mitosis: two cells are produced, each with the diploid chromosome number (4, the daughter cells are genetically identical with the parent cell and with one another.
