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Genetics Vocabulary
Basic Punnett Square vocabulary
| Term | Definition |
|---|---|
| trait | a characteristic that an organism can pass on to its offspring through its genes |
| heredity | the passing of traits from parents to offspring |
| alleles | the different forms of a gene |
| dominant allele | an allele whose trait always shows up in the organism when the allele is present; masks the recessive allele |
| recessive allele | an allele that is masked when a dominant allele is present |
| Punnett Square | a chart that shows all the possible combinations of alleles that can result from a genetic cross |
| phenotype | an organism’s physical appearance, or visible traits |
| genotype | an organism’s genetic makeup, or allele combinations |
| homozygous | having two identical alleles for a trait |
| heterozygous | having two different alleles for a trait |