explain characteristics of gonadotrophic hormone

Gonadotropins  are protein hormones secreted by anterior pituitary 

They include four hormones -FSH, LH, hCG and chorionic gonadotropin (CG)

Regulates normal growth, stimulates the gonads and controls reproductive activity

The hormones LH and FSH are secreted by the anterior pituitary gland, while hCG and CG are secreted by the placenta.