Q6 · 2022 · Paper 1Unclassified1 mark
QUESTION 6
The role of helicase in DNA replication is to
(A) initiate the process by binding to recognition sites along the template strand.
(B) add complementary bases to the template strand.
(C) unwind and separate DNA strands.
(D) join DNA strands together.
WORKED SOLUTION
1 markAnswer C
OFFICIAL ANSWERC
QCAA awards 1 mark for selecting option C.
Correct option from the official QCAA answer key.