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Genetics
Term | Definition |
---|---|
Alleles | The different possibilities for a given trait. Every trait has at least two alleles |
DNA | Deoxyribonucleic acid - the instructions for building all living things |
Dominant | Masks the other trait; the trait that shows if present |
Genes | The sequence of DNA that codes for a protein and thus determines a trait. |
Genetics | The scientific study of heredity |
Genotype | The genetic makeup of an organism; The gene (or allele) combination an organism has |
Heredity | Passing of traits to offspring |
Heterozygous | Term used to refer to an organism that has two different alleles for the same trait |
Homozygous | Term used to refer to an organism that has two identical alleles for a particular trait |
Phenotype | The physical characteristics of an organism |
Probability | The chance that a given event will occur |
Punnett Square | Diagram showing the gene combinations that might result from a genetic cross |
Recessive | Trait that only shows if both alleles are present |
Trait | A specific characteristic that varies from one individual to another |