Question

what uses bacteria to copy dna?
a. gel electrophoresis
b. polymerase chain reaction
c. nuclear transfer
d. recombinant dna technology

Explanation:

Recombinant DNA technology involves inserting foreign DNA into bacteria. Bacteria then replicate, copying the inserted DNA as they divide. Gel electrophoresis separates DNA fragments, polymerase - chain reaction amplifies DNA without using bacteria for replication, and nuclear transfer involves moving a nucleus, not using bacteria to copy DNA.

Answer:

D. Recombinant DNA technology