Friday 26 February 2021

Holocentric chromosomes are :

Q. Holocentric chromosomes are :

... Answer is A). Chromosomes with multiple centromeres

The centromere is the part of a chromosome that links sister chromatids or a dyad. During mitosis, spindle fibers attach to the centromere via the kinetochore. Centromeres were first thought to be genetic loci that direct the behaviour of chromosomes. With holocentric chromosomes, the entire length of the chromosome acts as the centro- mere, Examples of this type of centromere can be found scattered throughout the plant and animal kingdoms, with the most well-known example being the nematode Caenorhabditis elegans.


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