A) corpus luteum
B) uterus
C) placenta
D) graafian follicle
Correct Answer: A
Solution :
Estrogen is secreted from graafian follicles. These graafian follicles change into corpus luteum after ovulation. Progesterone secreted by corpus luteum which is known as pregnancy hormone because it helps in maintenance of pregnancy. Placenta secretes, chorionic gonadotropin and relaxin hormones. In uterus implantation of fertilized ova takes place for development,
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