Question

Jerome and Frank both have genetic disorders. Jerome experiences weak muscles and Frank often loses his memory. Which most likely describes their diseases?

A.Jerome has Huntington’s, which is sex-linked. Frank has cystic fibrosis, which is recessive.

B.Jerome has hemophilia, which is recessive. Frank has Huntington’s, which is sex-linked.

C.Jerome has cystic fibrosis, which is dominant. Frank has Duchenne muscular dystrophy, which is sex-linked.

D.Jerome has Duchenne muscular dystrophy, which is sex-linked. Frank has Huntington’s, which is dominant.

Answer 1

D. Jerome has Duchenne muscular dystrophy, which is sex-linked. Frank has Huntington’s, which is dominant.

Step-by-step explanation:

Duchenne muscular dystrophy (DMD) and Huntington's Disease (HD) are both neuro-degenerative diseases. Both are caused by mutations in exons that encode for proteins.

DMD is sex-linked because the mutation that causes this disease is found on the X-chromosome. The diseases specifically affects muscles and cause muscular dystrophy, hence the name.

Huntington's disease is autosomal dominant and the mutation is found on chromosome number 4. The Huntington protein is involved in numerous processes and the mutation causes progressive nuero-degeneration.