A genetic disease is found in a family that affects the immune system, lungs, heart, and

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)
pleiotropy
incomplete dominance
codominance
polygenic trait

Answer 1

The answer is pleiotropy. Pleiotropy occurs when a single gene mutation affects multiple phenotypic characteristics or traits. In this case, the genetic disease affects the immune system, lungs, heart, and kidneys, indicating that the mutation in the gene has multiple effects on these different systems.