Question

Study the pedigree chart of a family showing the inheritance pattern of a certain disorder. Select the option that correctly identifies the nature of the trait depicted in the pedigree chart.

• A. Dominant X-linked
• B. Recessive X-linked
• C. Autosomal dominant
• D. Autosomal recessive

Hint:

In autosomal recessive inheritance, carriers are unaffected but can pass the trait to offspring if both parents are carriers.

Answer 1

The Correct Option is D

The pedigree shows characteristics of an autosomal recessive inheritance: The disorder skips generations, indicating it is recessive. Both males and females are equally affected, suggesting it is autosomal. Affected individuals inherit two recessive alleles (one from each parent).