Which of the Following is Typically Associated with an Autosomal

Question

Which of the following is typically associated with an autosomal recessive pattern of inheritance?
A) an affected offspring has one or more affected parents
B) an affected individual with one affected parent will have 50% of its offspring affected
C) two affected heterozygous individuals will have 25% of their offspring unaffected
D) an affected offspring has two unaffected parents

Accepted Answer

Autosomal recessive inheritance typically requires two copies of the mutant gene - one from each parent. Therefore, an affected offspring typically has two unaffected parents. Choices A, B, and C are not typical of autosomal recessive inheritance.