Question

Study the pedigree chart of a family showing the inheritance of myotonic dystrophy:

The trait under study is:

• A. dominant X-linked trait
• B. recessive X-linked trait
• C. autosomal dominant trait
• D. autosomal recessive trait

Hint:

Autosomal dominant traits typically appear in every generation and affect both sexes equally.

Answer 1

The Correct Option is C

The pedigree shows both males and females affected in every generation, which is a key feature of autosomal dominant inheritance. X-linked traits generally show criss-cross inheritance patterns and recessive traits often skip generations, which isn't seen here.