Telocentric
Telocentric
Telocentric (pronunciation: te-lo-cen-tric) is a term used in Genetics to describe a type of chromosome where the centromere is located at the very end of the chromosome.
Etymology
The term "telocentric" is derived from the Greek words "telos" meaning "end", and "kentron" meaning "center". This refers to the position of the centromere at the end of the chromosome.
Description
In a telocentric chromosome, the centromere is located at the terminal end, resulting in one arm being extremely short or virtually non-existent. This is in contrast to other types of chromosomes such as metacentric, submetacentric, and acrocentric chromosomes, where the centromere is located at different positions along the chromosome length.
Related Terms
- Centromere: The part of a chromosome that links sister chromatids. During mitosis, spindle fibers attach to the centromere via the kinetochore.
- Chromosome: A DNA molecule with part or all of the genetic material of an organism.
- Metacentric: A chromosome in which the centromere is centrally placed and the chromosome arms are approximately equal in length.
- Submetacentric: A chromosome in which the centromere is displaced towards one end, creating one longer arm and one shorter arm.
- Acrocentric: A chromosome in which the centromere is significantly displaced towards one end, creating one very long arm and one very short arm.
See Also
External links
- Medical encyclopedia article on Telocentric
- Wikipedia's article - Telocentric
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