Understand the role of testosterone, and sry gene in sexual dimorphism.
-Testosterone: MASCULINIZATION of the GENITAL and the BRAIN;
-Androgen, male sex hormone synthesized in the testes, responsible for SECONDARY male sex characteristics, produced from PROGESTERONE.
-Sry gene: located on the Y CHROMOSOME and CODES for producing TESTICLES,
-if Sry gene is NOT PRESENT, then the body produces OVARIES.