Hormones, the menstrual cycle and reproduction

As part of a fertility assessment, a woman has a blood test on day 21 of her menstrual cycle.

The laboratory report reveals a high concentration of progesterone in her blood.

Explain the biological cause of this high progesterone level on day 21 of the menstrual cycle.

[2]

As part of a fertility assessment, a woman has a blood test on day 21 of her menstrual cycle.

The laboratory report reveals a high concentration of progesterone in her blood.

Explain the biological cause of this high progesterone level on day 21 of the menstrual cycle.

[2]

Hormones, the menstrual cycle and reproduction Questions