Answer:
The role of protein in the chromosome is to condense and coil DNA.
Explanation:
Proteins in a chromosome are to assist condense the DNA. Cells have very large DNA in each nucleus however cells are microscopic. This is where protein which is histone proteins play their role.
DNA is being wrapped or coiled around these small proteins termed histones. Eight histone proteins combine to forms bead called a nucleosome that DNA coil around.
Thus, the correct answer is its helps in condense and coil DNA.