Q2 · 2022 · Paper 1Unclassified1 mark
QUESTION 2
Which stage of making recombinant DNA requires DNA ligase?
(A) cutting
(B) joining
(C) isolation
(D) transformation
WORKED SOLUTION
1 markAnswer B
OFFICIAL ANSWERB
QCAA awards 1 mark for selecting option B.
Correct option from the official QCAA answer key.