Ovulation does not occur during pregnancy in the human female because

  • A
    The follicles are not influenced by the level of progesterone in the blood
  • B
    The corpus luteum and later the placenta produce large amounts of progesterone
  • C
    The corpus luteum degenerates as luteinising hormone is no longer produced
  • D
    The embryo produces hormones which retard the production of maternal follicle stimulating hormones

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Similar Questions

Where does the development of the embryo take place?

$A$: Human chorionic gonadotrophin $(hCG)$ prevents the corpus luteum from involuting.
$R$: It has properties similar to luteinizing hormone $(LH)$.

Placenta is the region where:

The umbilical cord in mammals contains:

Mesoderm gives rise to all the structures except

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