Question

Question: Which statement describes how basic DNA technology is used to construct recombinant DNA molecules? (1 point)

Answers:

Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together.

Scientists use a gel-filled electrical chamber during gel electrophoresis to isolate DNA fragments.

Scientists use heat and bacterial transformation to add novel DNA into bacterial cells.

Scientists use high temperatures to separate strands of DNA molecules during polymerase chain reaction.

Answer 1

Correct answer: Scientists use restriction enzymes to cut DNA molecules and ligation to paste DNA fragments together.

Explanation: Constructing recombinant DNA requires cutting DNA at specific sites with restriction enzymes and joining fragments with DNA ligase to create new combinations.