| A | B |
|---|
| allele | the different forms of a gene |
| dominant allele | an allele whose trait always shows up in the organism when the allele is present |
| genotype | an organism's genetic makeup, or allele combinations |
| heterzygous | having two DIFFERENT alleles for a trait |
| homozygous | having two IDENTICAL /same alleles for a trait |
| phenotype | an organism's physical apprearance, or visible traits |
| Punnett square | a chart that shows all the possible combinations of alleles that can result from a genetic cross |
| recessive allele | an allele that is hidden when a dominant allele is present |
| trait | a characteristic that an organism can pass on to its offspring through its genes |
| ratio | relationship between two values that have the same unit; for each___ there are ____. |
