| A | B |
|---|
| heredity | passing of genetic traits from parent to offspring |
| dominant trait | trait observed in the first generation |
| recessive trait | must be passed from both parents to appear in offspring |
| Mendel | did experiments with pea pods |
| self-pollinating | flower that has both male and female reproductive structures |
| gene | set of instructions for an inherited trait |
| allele | dominant or recessive form of a gene |
| phenotype | organism's appearance due to inherited traits |
| genotype | entire genetic makeup of an organism |
| Punnett Square | used to organize all possible combinations of offspring |
| homologous chromosomes | pair of chromosomes with the same sequence of genes |
| meiosis | cell division which halves the number of chromosomes |
| sex chromosome | X or Y chromosome |
| pedigree | diagram showing occurrence of a trait in a family |
| sex-linked disorders | happen due to only one X chromosome |
