Question

Consider the following family history: Bob has a genetic condition that affects his skin. Bob’s wife, Eleanor, has normal skin. No one in Eleanor’s family has ever had the skin condition. Bob and Eleanor have a large family. Of their eleven children, all six of their sons have normal skin, but all five of their daughters have the same skin condition as Bob. Based on Bob and Eleanor’s family history, what inheritance pattern does the skin condition most likely follow?a. autosomal dominant b. X-linked dominant c. Y-linked dominant d. autosomal recessive e. X-linked recessive

Answer 1

Answer:

X-linked dominant

Explanation:

In this scenario,

It is caused by a X-linked dominant allele. Bob daughters would all have the same skin condition as Bob.

It will interest you to know that none of Bob sons would have the skin conditions as they have his Y chromosome instead