Definition
noun, plural: telocentric chromosomes
A chromosome whose centromere is placed very close to the end of the chromosome
Supplement
The centromere is the dense, constricted region in a chromosome. It contains highly-specialized repetitive DNA sequences (e.g. satellite DNA) that are packaged into heterochromatin. The centromere serves as the site for kinetochore assembly and therefore it is essential during the alignment of the chromosomes at the metaphase plate and the subsequent segregation of chromosomes during cellular division. The presence of the centromere results in the characterization of the chromosomal arms. The arm that is relatively shorter is called p whereas the one that is longer is called q. Based on the position of the centromere, the chromosome may be described as metacentric, submetacentric, acrocentric, telocentric, subtelocentric, and holocentric.
A telocentric chromosome is a chromosome whose centromere is located at one end. The centromere is located very close to the end of the chromosome that the p arms would not, or barely, be visible. A chromosome that has a centromere closer to the end than the center is described as subtelocentric.
Both telocentric and subtelocentric chromosomes have not been observed in humans.
See also:
Dictionary > Telocentric chromosome
You will also like...
The Evolutionary Development of Multicellular Organisms
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Birth of a Human Baby
Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..
A Balanced Diet – Minerals and Proteins
Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..
Population Growth and Survivorship
This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..
Ecology & Biodiversity: New Zealand Flora & Fauna
New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away..
Running Water Freshwater Community Factors
This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..