Final answer:
Sexual differentiation in the CNS and PT involves complex hormonal and genetic processes that result in the development of distinct male and female reproductive systems.
Step-by-step explanation:
Sexual differentiation in the central nervous system (CNS) and peripheral tissues (PT) begins during the fetal period, around weeks 9-12. At this stage, embryos have bipotential gonads that can develop into male or female sexual organs. The differentiation is influenced by hormonal changes and leads to the development of primary and secondary sex characteristics.During puberty, there is further development of the reproductive systems, including the initiation of spermatogenesis in males and ovulation and menstruation in females. The hormonal changes during this stage also lead to the development of secondary sex characteristics. The hypothalamus and pituitary gland play important roles in these processes.Overall, sexual differentiation in the CNS and PT involves complex hormonal and genetic processes that result in the development of distinct male and female reproductive systems.