A genetic disease is found in a family that affects the immune system, lungs, heart, and kidneys. A DNA analysis of several affected and unaffected family members determines that the disease is caused by a mutation in a single gene. What type of inheritance pattern is shown in this disease? (1 point)

Question

A genetic disease is found in a family that affects the immune system, lungs, heart, and kidneys. A DNA analysis of several affected and unaffected family members determines that the disease is caused by a mutation in a single gene. What type of inheritance pattern is shown in this disease? (1 point)
a. incomplete dominance
b. pleiotropy
c. codominance
d. polygenic trait

GPT-4 Turbo · Answer

b. pleiotropy

Pleiotropy occurs when one gene influences two or more seemingly unrelated phenotypic traits. Since the disease affects multiple systems (immune, lungs, heart, kidneys) and is caused by a mutation in a single gene, this fits the description of pleiotropy. The inheritance pattern (autosomal dominant, autosomal recessive, X-linked, etc.) cannot be determined from the information provided.