How is the chromosome region where the centromere is located called? How are chromosomes classified in relation to the position of their centromere?
The chromosome region where the centromere is located is known as primary constriction. In microscopic view this region is narrower (a stricture) than most part of the chromosome.
According to the position of the primary constriction the chromosomes are divided as telocentric, acrocentric, submetacentric or metacentric.