| A | B |
|---|
| heredity | study of inheritance of traits |
| genotype | inherited combination of genes for a trait, i.e. Pp |
| phenotype | inherited appearance |
| dominant trait | trait which appears if present, i.e. round peas |
| recessive trait | hidden trait, i.e. wrinkled peas |
| incomplete dominance | trait which is neither dominant nor recessive, creating a mixing effect, as in red, white, pink snapdragon |
| codominance | two traits equally expressed, creating equal #s of each trait i.e. lentil seeds |
| Punnett Square | tool for predicting offspring of a cross |
| true-breeding | homozygous; pure for one trait |
| self-pollination | plant with both male and female parts which can fertilize itself |
| Gregor Mendel | Austrian monk who studied heredity in plants |
| chromosome | structure containing genes |
| gene | set of instructions determining a trait |
| sex-linked trait | trait whose gene is located on the X or Y chromosome |
| sex chromosome | X or Y chromosome determining sex characteristics |
| allele | form of a gene or trait |
