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Mrs. Nazario's class
Unit 4 Molecular Genetics 2
Term | Definition |
---|---|
Dominant gene | A gene which produces its effect even though an opposite gene is present |
Hybrid | The offspring resulting from a cross between two organisms differing in one or more genes |
Incomplete dominance | A condition in which neither gene is dominant so that an intermediate or blended hybrid is produced. Example: red Four o'clocks crossed with white Four o'clocks to produce pink Four o'clocks |
Inherit | To receive traits from an ancestor |
Multiple genes | Several genes which affect a trait |
Purebred | An organism having the same genes for a particular trait. Example: TT is a purebred as opposed to Tt which is a hybrid |
Recessive gene | A gene carried by the cells that does not show its trait as long as a dominant gene is present. Example: blue eyes are recessive and will not show their trait as long as brown eyes are present |