Dicentric chromosome

dicentric chromosome
an aberrant chromosome with two centromeres
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row ...

Dicentric chromosome: One chromosome having two centromeres.
Dikaryotic: A cell that contains two separate haploid nuclei (n+n) which is different from being haploid (n) or diploid (2n). Naturally seen in fungal heterokaryons.

This must be coupled with the inactivation of the previous centromere since chromosomes with two functional centromeres (Dicentric chromosome) will result in chromosome breakage during mitosis.

In rare cases in humans, neocentromeres can form at new sites on the chromosome. This must be coupled with the inactivation of the previous centromere since chromosomes with two functional centromeres (dicentric chromosomes) will result in ...

See also: Centromere, Genetics, Chromosome, Dicentric, Biology