| A | B |
|---|
| Male Mammals | XY |
| Female Mammals | XX |
| Polyploidy | extra or missing chromosomes |
| Aneuploidy | very small chromosomes |
| Down Syndrome | extra #21 |
| Mitosis | My Toes -- division of normal body cells |
| Meiosis | division of germinal cells to produce sperm and egg |
| 1N (egg) + 2N (sperm) = | 2N (life) |
| Spermatogenisis | meiotic production of sperm cells |
| Oogenesis | meiotic production of egg cells |
| Ribonucleic acid | RNA |
| Deoxyribonucleic acid | DNA |
| Adenine, Cytosine, Guanine, Thymine | Nitrogenous Bases |
| Epistasis | one gene pair influences expression of another gene pair |
| Lethal Genes | stop embryonic develpoment |
| Recombinant DNA | Bovine growth hormone |
| Flavr-Savr tomato | gene altered to lengthen shelf life |
| Clone | genetically idential |
| Dolly | a cloned sheep |
| Mutation | change in the base sequence |
