EMBRYOLOGY
MALE SEX GLANDS TESTES AND SPERMATOGENESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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spermatogonium
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primary spermatocyte
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spermatogonium
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none of the above
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Detailed explanation-1: -Spermatogenesis can be divided into three phases: (1) proliferation and differentiation of spermatogonia, (2) meiosis, and (3) spermiogenesis, a complex process that transforms round spermatids after meiosis into a complex structure called the spermatozoon.
Detailed explanation-2: -Within the transformation zone, six stages of primary spermatocytes, including leptotene, zygotene, pachytene, diplotene, diakinesis, and metaphase; a secondary spermatocyte stage, and three stages of spermatids, could be distinguished.
Detailed explanation-3: -Step 1: Spermatocytogenesis Each primary spermatocyte then moves into the adluminal compartment of the seminiferous tubules, duplicates its DNA, and subsequently undergoes meiosis I to produce two haploid secondary spermatocytes. Secondary spermatocytes later divide into haploid spermatids.