| A | B |
|---|
| # of divisions in meiosis | 2 |
| Example of mitosis | growing an inch taller |
| meiosis makes these cells | gametes |
| Chromosome | The letter "X" in eukaryotes |
| Homologous chromosomes | "XX" 1 from Mom & 1 from Dad |
| Fertilization | when egg & sperm meet |
| Diploid number: 2n has | 2 sets of chromosomes |
| Haploid number has | 1 set of chromosomes |
| Crossing over | tetrads trade genes |
| Tetrad is also called | homologous chromosome |
| Law independent assortment | creates genetically different cells |
| Nondisjunction | when tetrads fail to separate |
| Down's syndrome | 3 copies of #21 |
| 1 chromosome has | 2 chromatids |
| Differentiation | when a baby cell grows up |
| Adult/differentiated cells can | access genes related 2 function |
| Diploid cell has 20 chromosomes | haploid cell has 10 chromosomes |
| Haploid cell has 10 chromosomes | diploid cell has 20 chromosomes |
| Genetic variety | baby looks different from parents |
| Zygote | made when sperm & egg unite |
| # of divisions in mitosis | 1 |
| undifferentiated cell | baby/stem cell; access to all gene |
