Q8 · 2025 · Paper 2Unclassified2 marks
QUESTION 8 (2 marks)
Distinguish between exons and introns.
WORKED SOLUTION
2 marksQCAA guide · typeset solution
QCAA sample response and mark allocation
8 | Exons are sections of DNA (or mRNA) that code for proteins; whereas introns are non- coding sections that get spliced out. | • describes exons or introns [1 mark] • distinguishes between exons and introns [1 mark] |
QCAA sample response and marking criteria reproduced from the official guide.
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