Which of the Following Is Not a Way to Treat

Multiple Choice

Which of the following is not a way to treat a genetic disease?

A) Inhibiting a harmful biochemical reaction
B) Adding the wild-type allele to cells expressing the mutation
C) Restricting the substrate of a harmful biochemical reaction
D) Replacing a mutant allele with the wild-type allele in the fertilized egg
E) Supplying a wild-type protein that is missing due to mutation