PHYSIOLOGY
REPRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In the head
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In the tail
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In the middle piece
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None of the above
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Detailed explanation-1: -The head of the sperm contains the DNA, which when combined with the egg’s DNA, will create a new individual. The tip of the sperm head is the portion called the acrosome, which enables the sperm to penetrate the egg.
Detailed explanation-2: -The mature sperm cell (spermatozoa) is 0.05 milliliters long. It consists of a head, body and tail. The head is covered by the ac cap and contains a nucleus of dense genetic material from the 23 chromosomes.
Detailed explanation-3: -Sperm usually consist of two morphologically and functionally distinct regions enclosed by a single plasma membrane: the tail, which propels the sperm to the egg and helps it to burrow through the egg coat, and the head, which contains a condensed haploid nucleus (Figure 20-25).