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![[-- dominant --]](Images/Terms/dominant.gif){kind=small}
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| defined: |
A gene that almost always results in a specific physical characteristic, for example, a disease, even though the patient's genome possesses only one copy. With a dominant gene, the chance of passing on the gene (and therefore the disease) to children is 50-50 in each pregnancy.
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| explained: |
Listen to a detailed explanation.
Dr. Robert Nussbaum, of the National Human Genome Research Institute's Laboratory of Genetic Disease Research, defines dominant. |
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related terms: |
gene, genome | |
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