A large deletion removes the promoter and first three exons of a gene.No mRNA or protein is detected.What type of allele is this mutant allele?
A)hypomorphic allele
B)hypermorphic allele
C)null allele
D)antimorphic allele

Question

Quizplus · Accepted Answer

A null allele results from mutations that completely eliminate the function of the gene, as would occur if the promoter and first three exons are deleted, preventing any mRNA or protein production.

A Large Deletion Removes the Promoter and First Three Exons