1.

Write two major functions each of testis and ovary.

Answer» Functions of the Testis
`implies` They produce male gametes called spermatozoa by the process of spermatogenesis.
`implies` The leydig cells of the seminiferous tubules secrete the male sex hormone called testosterone. Testosterone aids the development of secondary sex characteristics in males.
Functions of the ovary
`implies`They produce female gametes called ova by the process of oogenesis. `implies` The growing Graffian follicles secrete the female sex hormone called estrogen. Estrogen aids the development of secondary sex characteristics in females.


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