Labels:text | screenshot | black | black and white OCR: e to each Approximately germ cells mig mber ridge during embryogenesis, and this puberty, increases up to the time of puberty. Af each spermatogonium that is undergo differentiation gives rise to sixteen pri meiosis spermatocytes, each of which then ent mately and gives rise to four spermatids and 1 four sperm (Fig. 11.13). In the adult m med each approximately 100 million sperm are day.
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