| A | B |
|---|
| dominant allele | the allele that codes for the trait that appears in an offspring when two different alleles are paired |
| gene | a unit found on a cell's chromosomes that carries information about a trait of the organism |
| genotype | the complete genetic makeup of an individual or a species |
| heredity | the passing of traits from one generation to the next |
| heterozygous | having two different alleles for a single trait |
| homozygous | having two identical alleles for a single trait |
| pedigree | a chart used to show records of relatives through several generations |
| phenotype | the observable traits of an organism |
| Punnett square | a grid used to show the possible combinations of alleles from the crossing of two parent organisms |
| recessive allele | n allele that will not express itself in an organism when paired with a dominant allele |
