Chromosome 21 belongs to which of the following subtype?
Acrocentric chromosome
Metacentric chromosome
Submetacentric chromosome
Telocentric chromosome
Two different arms of the chromosome are separated by a structure known as Centromere. Location of centromere Type of chromosome Example Exactly in the middle Metacentric Towards one side Sub-metacentric 'X' chromosome On the one end Acrocentric 'Y' chromosome, 13,14,15,21,22 chromosome. Right at the tip Telocentric Not seen in humans
Specific Cytogenetic Disorders