Question Detail

BIO 201 Genetics 1 Objective Question

Question

Which mode of inheritance is characterized by affected fathers never transmitting the trait to their sons, but all their daughters becoming obligate carriers?
Options
A Autosomal dominant
B X-linked recessive
Correct Answer
C Y-linked (holandric)
D Mitochondrial
Correct Answer

Option B is the correct answer.

Detailed Explanation

In X-linked recessive inheritance, fathers pass their single X chromosome to all daughters (making them carriers if mother is normal) and their Y chromosome to all sons (who remain unaffected).

Hint

No hint available

Question Info