Biology 5090 · O Level · Mammalian hormones

Mammalian hormones — practice question

The diagram illustrates how the thickness of the lining of the uterus changes over one menstrual cycle. At what point would the levels of progesterone and LH be at their highest?

  • Aprogesterone: between day 12 and 16; LH: between day 25 and 28
  • Bprogesterone: between day 19 and 23; LH: on day 14
  • Cprogesterone: on day 5; LH: between day 1 and 5
  • Dprogesterone: on day 13; LH: on day 10

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