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Science Vocab 3
Other Forms of Inheritance
Term | Definition |
---|---|
Polygenic Trait | Trait controlled by two or more genes. |
Co-dominance | When both alleles are completely expressed in the phenotype. |
Incomplete Dominance | When one allele is not completely dominant over the other. |
Sex-linked Gene | Gene located on a sex chromosome. |
Pleiotropy | The control of more than one phenotypic characteristic by a single gene. |
Linked Genes | Genes located near each other on the same chromosome that tend to be inherited together. |
Barr body | A dense body formed by the deactivation of the X-chromosome found in the nuclei of female mammalian cells. |
X-inactivation | When in female cells the extra X-chromosome switched off in the cells. |