A mutation that caused a person to have an ineffective complement C6 protein would have a direct effect on formation of
A) complement-antibody complex.
B) C3 convertase.
C) C3b opsonins for phagocytosis.
D) membrane attack complex.
E) C5 convertase.

Question

Quizplus · Accepted Answer

Complement C6 is involved in the formation of the membrane attack complex (MAC), which is responsible for the destruction of pathogens. Without an effective C6 protein, the MAC cannot be formed, leading to decreased ability to eliminate pathogens in the body. The other choices (A, B, C, and E) all involve other components of the complement system, but do not directly depend on C6 for their function.

A Mutation That Caused a Person to Have an Ineffective