If mammalian ovum fails to get fertilized, which one of the following even is unlikely to occur:
The secretion of Estrogen further decreases
The secretion of Progesterone rapidly increases
Disintegration of Corpus luteum will takes place
The development of Primary Follicles
When a mammalian ovum fails to fertilise, the corpus leuteum degenerates, which causes progesterone levels to drop quickly (progesterone is essential for maintenance of pregnancy). Additionally, estrogen keeps the endometrium growing until it thickens to the point of rupture and menstruation. Therefore, there is no additional increase in estrogen secretion.Hence, the correct option is (a).