Questions About Cancer? 1-800-4-CANCER

Understanding Cancer Series

  • Posted: 01/28/2005
  • Reviewed: 09/01/2006

Slide 15

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Altered Dominant Genes

In dominant genetic disorders, one affected parent has a disease-causing allele that dominates its normal counterpart.

Each child in the family has a 50 percent chance of inheriting the disease allele and the disorder.

Altered Dominant Genes