| A | B |
|---|
| prophase | chromatin fibers condense into discrete chromosomes, nucleus disappears |
| metaphase | chromosomes line up in center of cell |
| anaphase | paired centromeres of each chromosome separate, separating sister chromatids |
| telophase | nucleus reappears, cleavage furrow forms |
| interphase | longest phase, period of cell growth and chromosome duplication |
| mitosis | forms 2 diploid daughter cells |
| meiosis | forms 4 haploid gamete cells |
| spindle fibers | fibers which chromosomes attach during cell division |
| haploid (human) | 23 chromosomes |
| diploid (human) | 46 chromosomes |
| crossing over | exhange of segments of DNA between homologous chromosomes during prophase I |
| sister chromatids | are tightly linked together at the centromere |
| cytokinesis | splitting of the cytoplasmic material forming new cells |
| chiasma | the site of crossing over |
