Q23 · 2024 · Paper 1Unclassified3 marks
QUESTION 23 (3 marks)
In rabbits, black fur is dominant to white fur. A male that is heterozygous for black fur is crossed with a female with white fur, producing 12 offspring. Predict the number of offspring with white fur. Justify your response using a Punnett square.
WORKED SOLUTION
3 marksQCAA guide · typeset solution
QCAA sample response and mark allocation
23 | • identifies parental genotypes [1 mark] • provides an appropriate Punnett square [1 mark] • predicts number of offspring with white fur [1 mark] |
QCAA sample response and marking criteria reproduced from the official guide.
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