| A | B |
|---|
| asexual reproduction | cell splits and makes 2 identical cells |
| sexual reproduction | 2 parents produce offspring that are different from each parent |
| chromatins | fibers with genetic material |
| number of human chromosomes | 46 |
| what hooks chromatids together | centromeres |
| phase that takes up the most time | interphase |
| an example of a cell that hardly ever divides | muscle |
| 3 phases of interphase | G, S, G |
| cells that are out of control reproducing | tumor |
| benign | mass if normal cells that stay where originally grown |
| malignant | masses of cancer cells that can spread to other organs |
| metastasis | spreading of cells to other places |
| chemotherapy | disrupts cell division and spindle formation causes hair loss and nausea |
| radiation | stopd constant cell division |
| antimitotic | term for keeping cells from dividing |
| karotype | picture of chromosomes |
| homologous chromosome | pair of chromosomes one from mom, one form dad carrying different traits |
| sex chromosome | 23 |
| XX | female |
| XY | male |
| diploid | 2 homologous sets (46 in people) |
| haploid | single set (23 in people) |
| zygote | male and female egg - diploid |
| meosis | 4 offspring with 1/2 chromosomes as parent |
| mitosis | 2 offspring with same number of chromosomes as parent |
| number of divisions in meiosis | 2 |
| tetrads | 4 chromatids stuck together by protein |
| haploid number for people | 23 |
