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Satellite means

A. terminal part of the chromosome beyond secondary constriction.

B. terminal part of the chromosome beyond primary constriction.

C. terminal part of chromosome beyond tertiary constriction.

D. none of the above

Correct Answer : A.


Satellite is a small chromosomal segment separated from the main body of the chromosome by a secondary constriction. In humans it is usually associated with the short arm of an acrocentric chromosome. They play a vital role in the formation of the nucleolus after cell division. In humans, chromosomes number 13, 14, 15, 21 and 22 are examples of SAT (satelite) chromosomes.

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