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Solution


Q.

When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred as              [2021]
1 acrocentric  
2 metacentric  
3 telocentric  
4 sub-metacentric  

Ans.

(2)

Depending upon the position of the centromere, chromosomes are of four types:
(i) Acrocentric - Centromere is situated inner to telomere.
(ii) Metacentric - Centromere present in the middle of the chromosome.
(iii) Telocentric - Centromere terminal in the area of telomere.
(iv) Sub-metacentric - Centromere occurs slightly away from the middle of the chromosome.