Question

In the metacentric chromosomes

• A. Centromere is located at one end and has one arm
• B. Centromeres are non-centrally located so that one arm is longer than the other
• C. Centromeres are located in the centre two arms of the chromosomes are equal.
• D. centromeres are found at the end so that one arm is very short and the other arm is long

Answer 1

The correct option is C Centromeres are located in the centre two arms of the chromosomes are equal.

A centromere is not always located in the central area of a chromosome. Centromeres may be located near the mid-region of a chromosome or at a number of positions along the chromosome. Metacentric centromeres are located near the chromosome centre.Submetacentric centromeres are non-centrally located so that one arm is longer than the other. Acrocentric centromeres are located near the end of a chromosome and telocentric centromeres are found at the end or telomere region of a chromosome.