Question

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)
Responses

polygenic trait
polygenic trait

incomplete dominance
incomplete dominance

pleiotropy
pleiotropy

codominance
codominance
Skip to navigation

Answer 1

The correct answer is **pleiotropy**.

Pleiotropy occurs when a single gene influences multiple phenotypic traits or systems in the body, which is the case described where the mutation affects the immune system, lungs, heart, and kidneys.