In English | En español
Questions About Cancer? 1-800-4-CANCER

Understanding Cancer Series

< Back to Main
  • Posted: 01/28/2005
  • Reviewed: 09/01/2006

Page Options

  • Print This Page
  • Print This Document
  • View Entire Document
  • Email This Document
  • View/Print PDF
  • View/Print PowerPoint

Slide 45

:

Autosomal Recessive Inheritance

< Previous SectionNext Section >

In autosomal recessive inheritance, two copies of the allele are required for the trait to be expressed. Carriers of one disease allele will not develop the illness, and several generations may be unaffected, leading to the appearance of skipped generations. Males and females are equally affected. If both parents carry one copy of the recessive allele, one in four offspring, on average, will express the trait.

Autosomal Recessive Inheritance