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Vocabulary- Heredity
Term | Definition |
---|---|
Gregor Mendel | the monk who studied pea plants are researched heredity and genetic traits |
Heredity | the passing of inherited characteristics from generation to generation. |
DNA | the chemical code inside each cell that determines a persons traits. A-T, C-G |
Dominate Trait | a genetic trait that appears in the first generation (child) and covers the recessive trait |
Recessive Trait | a weaker trait covered up by a dominant trait in the first generation. It shows up in the 2nd (grandchild) or later generations. |
Gene | one set of instructions for an inherited trait on the chromosomes. |
Alleles | a different form of the same gene (ex, hair color) that control on inherited trait. |
Genotype | the genes and inherited instructions for organism. Not all can be seen. |
Phenotype | the physical inherited characteristics that can be seen in organisms, such as hair, eye, and skin color. |
Punnett Square | a chart that can predict all the possible combinations of offspring from particular parents. |
Pedigree Chart | a diagram used to trace inherited traits through many generations of a family. |
Homologous Traits | interning two of the same genes for a genetic trait (pure breed) example: BB for brown eyes and bb for blue eyes |
Heterogeneous Traits | interning two different genes for a genetic trait (hybrid) example: Bb for brown eyes |