The reason for differences in the sets of proteins expressed in a nerve and a pancreatic cell of the same individual is that nerve and pancreatic cells contain different ________.
A) genes
B) regulatory sequences
C) sets of regulatory proteins
D) promoters
E) promoter-proximal elements

Question

Quizplus · Accepted Answer

Nerve and pancreatic cells express different sets of proteins primarily due to differences in the sets of regulatory proteins they contain. These regulatory proteins influence the expression of genes specific to the functions of nerve and pancreatic cells, respectively, even though the cells have the same DNA.

The Reason for Differences in the Sets of Proteins Expressed