| A | B |
|---|
| genetics | the study of heredity |
| traits | characteristics |
| heredity | the passing on of traits from an organisn to its offspring |
| genes | the factors that control traits |
| phenotype | the physical appearance of a trait |
| genotype | the genetic makeup of a trait |
| dominant | the stronger of two alleles in a gene pair |
| recessive | the weaker of two alleles in a gene pair |
| codominant | neither gene in a gene pair masks the other |
| allele | each member of a gene pair that dominates a specific trait |
| homozygous | both alleles in a gene pair are identical |
| heterozygous | the alleles in a gene pair are different |
| purebred organism | both allels in a gene pair are alike for a trait |
| hybrid | has genes that are different |
| probalility | the likelihood of an event occurring |
| stamen | the male part of a flower |
| pistil | the female part of a flower |
| chromosomes | rod shape structures that are found in the nucleus of cells that contain the genes |
