The Discovery That Some Bacteria ____ Using Enzymes That Cut

Multiple Choice

The discovery that some bacteria ____ using enzymes that cut the viral DNA into pieces was one of the first steps in the development of recombinant DNA technology.

A) exchange fused plasmid DNA
B) restrict important nutrients from leaving the bacterial cell
C) resist viral infection
D) cut up and recycle mRNA transcripts
E) attach amino acids to tRNA molecules