Biology for IGCSE & O level - Reproduction (Section 6 - No. 48)
Which of the following statements describes the primary function of estrogen during the menstrual cycle?
Stimulates ovulation.
Maintains the uterine lining.
Thickens the uterine lining.
Inhibits the production of FSH.
Explanation
Estrogen's primary role is to cause the uterine lining to thicken in preparation for the possible implantation of a fertilized egg.
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