Restriction Endonucleases Are Useful in Gene Cloning Because

question 7

Multiple Choice

Restriction endonucleases are useful in gene cloning because:

• A) they can cut DNA at specific sequences.
• B) they can join DNA molecules that have been cut at specific sequences.
• C) they all make cohesive ends when they cut DNA.
• D) they all make 5' phosphate extensions and recessed 3' OH groups that can be rejoined by DNA ligase.
• E) they can both cut and rejoin DNA molecules.

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