A System of Chromosome Classification and Nomenclature

Abstract

A system of chromosome classification and nomenclature based on arm ratios and centromeric indices from both the long and short arms is proposed. This will enable one to determine the correct position of centromere to name the chromosomes according to the known centromere locations. A table embodying nomenclature, notation, the arm ratio values and the values of centromeric indices is presented to serve as a key for chromosome classification. The advantage of the present system over the other systems is discussed with the help of a few examples.