alleryRestriction enzymes are best described as:
AEnzymes that join DNA fragments together
BEnzymes that cut DNA at specific sequences
CEnzymes that replicate DNA in the cell
DEnzymes that unwind DNA helices
Answer & Solution
Correct answer: B. Enzymes that cut DNA at specific sequences
Restriction endonucleases cut DNA at specific sequences (restriction sites, often 4-8 bp palindromes).
Joining is done by DNA ligase.
Replication by DNA polymerase. Unwinding by helicase.
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