| A | B |
| Cells that pass on genetic info | Egg & Sperm (gametes) |
| Subunits of DNA | Nucleotides |
| Amount of DNA from each parent in sexual reproduction | 1/2 |
| Complement to AACTGC | TTGACG |
| Complement to GACGCA | CTGCGT |
| Hereditary material in a cell | DNA |
| Capital Letter | Represents dominant alleles |
| Lower case letter | Represents recessive alleles |
| Allele | Alternative form of a gene |
| Homozygous | 2 of the same alleles |
| Heterozygous | 2 different alleles |
| Hidden in F1 generation, reappear in F2 | recessive traits |
| Genotype | combination of genes inherited from parent |
| Phenotype | Physical trait determined by the genotype |
| Double Helix | Shape of DNA |
| Genes | Segments of DNA that code for proteins |
| Chromosomes | Made of DNA & protein |