Question

In the given pedigree chart, the trait shown is:

Options

• Autosomal dominant

• Autosomal recessive

• X-linked

• Y-linked

Answer 1

Autosomal recessive

Explanation:

The trait shown in the given pedigree chart is autosomal recessive because the trait skips generations and appears only when an individual inherits two recessive alleles (homozygous recessive). Also, unaffected parents can have affected offspring, indicating that both parents are carriers (heterozygous) of the recessive allele. This pattern is typical of autosomal recessive inheritance, where the trait appears only when both alleles are recessive and affects males and females equally.