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Continuity of life on Earth — Question 24

QCAA 2023, Paper 1 · 5 marks

Q24 · 2023 · Paper 1Unclassified5 marks

QUESTION 24 (5 marks)

The frequency of a new allele was monitored in a population of insects over an 18-year period.

Biology question figure

Frequency

a) Infer if the new allele is advantageous or detrimental in this environment. Justify your response using evidence from the graph. [2 marks]

b) Explain how mutations can contribute to microevolutionary change in populations that reproduce sexually.

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