Question

Marfan syndrome can be caused by mutations in either of two genes involved in the disorder, but mutations in one of the genes blocks activity of the other. This means that Marfan syndrome demonstrates:

a) Genetic redundancy
b) Epigenetic modification
c) Pleiotropy
d) Genetic complementarity

Answer 1

Marfan syndrome demonstrates genetic complementarity, as mutations in one gene block the activity of another gene involved in the disorder.

Step-by-step explanation:

Marfan syndrome demonstrates genetic complementarity. This is because mutations in one of the genes involved in the disorder block the activity of the other gene. In genetic complementarity, two genes work together and their combined activity is necessary for normal functioning. When one of the genes is mutated, it prevents the other gene from compensating for the loss of function, resulting in the manifestation of the disorder.