A mutation in a promoter causes a disorder in which the blood clots too readily by
A)deleting a gene for a clotting factor.
B)blocking transcription of a clotting factor.
C)increasing susceptibility to a specific viral infection.
D)increasing the transcription rate of a particular clotting factor gene.

Question

Quizplus · Accepted Answer

A mutation in a promoter may affect the binding of transcription factors and therefore alter the transcription rate of a gene. In this case, the mutation may increase the transcription rate of a particular clotting factor gene, leading to the disorder of blood clotting too readily.

A Mutation in a Promoter Causes a Disorder in Which