Mutations That Affect SR Proteins Will Have What Kind of Effect

Question

Mutations that affect SR proteins will have what kind of effect on gene expression?
A)Splicing of the mRNA will not be activated.
B)General transcription factors will be unable to bind to promoters.
C)RNA polymerase will be unable to terminate transcription.
D)Ribosomes will not be able to bind to mRNA molecules in the cytoplasm.
E)Polyadenylation at the 3' end will be blocked.

Accepted Answer

SR proteins are splicing factors involved in alternative splicing of pre-mRNA. Mutations that affect these proteins will likely disrupt the splicing process, resulting in incorrect or incomplete splicing of the mRNA. Therefore, splicing of the mRNA will not be activated, which is option A. The other options are not directly related to the function of SR proteins.