| A | B |
|---|
| mitosis | Produces two identical diploid daughter cells |
| cell division | Functions in growth, repair, and reproduction |
| kinetochores | disk-shaped protein that attaches chromatid to the mitotic spindle |
| centromere | specialized region that hols two sister chromatids together |
| sister chromatids | Two strands of DNA; one is a replica of the other |
| meiosis | produces gametes in gonads |
| restriction point | Without the go-ahead signal, the cell becomes a nondividing cell |
| cyclins | Timing of cell division is timed by this |
| cytokinesis | division of the cytoplasm |
| interphase | consists of G1, S, and G2 |
| anaphase | Sister chromatids separate as spindle fibers pull them |
| telophase | Chromosomes cluster at opposite ends of cell, nuclear membrane reforms |
| prophase | Nuclear membrane disintegrates, strands of chromosomes condense and become visible |
| metaphase | Chromosomes line up single file o the plate, centrioles are at opposite ends of the cell |
| synapsis | Occurs during prophase of meiosis 1 |
| crossing-over | Produces recombinant chromosomes consisting of combined genes from two parents |
| contact inhibition | cells cease dividing when they become crowded |
