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Question

When the chromosome has a centromere near one end of a chromosome resulting in one shorter and one longer arm, the chromosome is called


A

Telocentric

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B

Submetacentric

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C

Metacentric

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D

Acrocentric

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Solution

The correct option is D

Acrocentric


Depending on the position of the centromere, chromosomes are of the following types:

Metacentric chromosome: The centromere is present right in the middle of the chromosome. It forms two equal arms of the chromosome.

Submetacentric chromosome: The centromere is present a little away from the middle of the chromosome. It forms two unequal arms of the chromosome.

Acrocentric chromosome: The centromere is present close to one of the ends of the chromosome. It forms one short and another quite long arm.

Telocentric chromosome: A terminal centromere. There is only one arm of the chromosome with the centromere at the end.


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