Question Detail

BIO 201 Genetics 1 Objective Question

Question

A human pedigree indicates that an affected male passes the trait to ALL of his daughters and NONE of his sons. What is the most likely mode of inheritance?
Options
A Autosomal recessive
B X-linked dominant
Correct Answer
C Y-linked
D Mitochondrial
Correct Answer

Option B is the correct answer.

Detailed Explanation

An X-linked dominant trait is transmitted from an affected father to 100% of his daughters (who inherit his only X) and 0% of his sons (who inherit his Y).

Hint

No hint available

Question Info