Outline4 marksStandard
A dairy farmer aims to improve the average milk yield of her herd over several generations. Outline the process of selective breeding she would use to achieve this.
CAIE A Level Biology 9700 · Selection and evolution
Selection and evolution: outline question
How this question is marked
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Outline means: Give the main points briefly. Less detail than describe, but every key step has to be there. One short line per step, in order. The marks are for coverage, not depth.
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