May/June 2026 Paper 21

2026 · 40 questions · 40 parts · 40 marks

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27Human Reproduction Sex HormonesMedium1 mark
Which row shows the roles of oestrogen and testosterone in the development of secondary sexual characteristics in humans?
production of gameteswidening of hipswidening of shoulders
Atestosteronetestosteroneoestrogen and testosterone
Btestosteroneoestrogenoestrogen and testosterone
Coestrogen and testosteroneoestrogentestosterone
Doestrogen and testosteroneoestrogen and testosteronetestosterone