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Question
The spermiogenesis involves all of the following except
The spermiogenesis involves all of the following except
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Solution
The correct option is C Shortening of sperm
During spermiogenesis, spermatid is converted into mature sperm cells. It is the final stage of spermatogenesis. During this, four processes take place, namely nuclear condensation, acrosome formation, flagellum formation and cytoplasm reduction. During nuclear condensation, the nucleus becomes smaller and denser. Nucleus and acrosome forms the head of the sperm. During acrosome formation, cap (acrosome) containing lysosomal enzymes is formed. It plays important role in penetration through pellucid zone of the egg. During flagellum formation, proximal and distal centrioles are formed in the neck region and the mitochondrial sheath is formed in the midpiece region. During cytoplasm reduction, unnecessary cytoplasmic contents are removed. Thus, the correct answer is option D.
During spermiogenesis, spermatid is converted into mature sperm cells. It is the final stage of spermatogenesis. During this, four processes take place, namely nuclear condensation, acrosome formation, flagellum formation and cytoplasm reduction. During nuclear condensation, the nucleus becomes smaller and denser. Nucleus and acrosome forms the head of the sperm. During acrosome formation, cap (acrosome) containing lysosomal enzymes is formed. It plays important role in penetration through pellucid zone of the egg. During flagellum formation, proximal and distal centrioles are formed in the neck region and the mitochondrial sheath is formed in the midpiece region. During cytoplasm reduction, unnecessary cytoplasmic contents are removed.
Thus, the correct answer is option D.
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