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Question

The genetic information is carried by which part of the sperm?


A

Tail

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B

Middle piece

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C

Head

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D

None of these

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Solution

The correct option is C

Head


The correct option is (C).

Explanation of the correct option:

  1. The Head is the essential part of sperm as it contains the nucleus and acrosome.
  2. The genetic information is carried by the nucleus which is present in the head part of sperm.
  3. An acrosome at the head tip produces enzymes that help to penetrate the sperm in the female ovum (egg).

Explanation of the incorrect options:

Option (A):

  1. The tail is a fine, slender, hairlike bundle of filaments that connects to the head and middle portion.
  2. It helps in the locomotion of the sperm.

Option (B):

  1. Each sperm has three parts: a head, middle piece and tail.
  2. The middle piece contains mitochondria which provide energy for the sperm.
  3. The mitochondria are tightly spiralled around the axial filaments of the flagellum.

Final answer: The genetic information is carried by the head of the sperm.


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