A) The uterine lining might not be sufficiently stable for implantation of fertilized ovum.
B) Levels of the hormone represented by graph P would be higher than normal.
C) Fertilization of ovum would fail to occur.
D) There would be no significant effect since the functions of the hormones overlap.
Correct Answer: A
Solution :
The graph P represents changes in estrogen level and graph Q represents changes in progesterone level during a normal menstrual cycle. Progesterone is required for the maintenance of uterine lining which is needed to implant the fertilized ovum. Thus, if progesterone is lacking in an adult female, her uterine lining might not be stable to support an implanted embryo.
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