A)hydrogen
B)amino acid
C)phosphate
D)protein

A)breaks down its DNA.
B)deletes old genetic information.
C)copies information from neighboring cells.
D)copies its own genetic information.

A)knowledge that chromosomes were composed of protein.
B)fact that proteins are small molecules and therefore easily copied.
C)fact that protein molecules are large and could carry a lot of information.
D)the idea that DNA molecules varied too much within cells of the same organism.