Principle Of Inheritance And Variation Question 397
Question: A diseased man marries a normal woman. They have three daughters and five sons. All the daughters were diseased and sons were normal. The gene of this disease is:
Options:
A) Sex-linked recessive
B) Sex-linked recessive
C) Sex-linked trait
D) Autosomal dominant
Show Answer
Answer:
Correct Answer: A
Solution:
Sex linked disorders follow a criss-cross inheritance pattern where an affected father passes on the gene to their daughters.
The daughters receive one of their X chromosome from their fathers.