“Centromere”  

  In our body's cells, Centromere, a clear constricted portion of the chromosome, is a specialized region on each chromatid to which kinetochores and sister chromatids attach.
  In our body, the Centromere is basic element for chromosome inheritance, with a role in the separation of chromosomes into daughter cells during cell division (mitosis and meiosis).

In our body's cells, the Centromere is the genetic locus located at the primary constriction of mitotic chromosomes that directs chromosome segregation.

Biochemically, the centromere may be defined by the presence of the histone H3 variant centromere histone centromere protein A (CENP-A), interspersed with canonical H3 nucleosomes carrying active chromatin marks.
This specialized chromatin class has been termed centrochromatin. During cell division, an elaborate multisubunit protein superstructure, the kinetochore, assembles on the surface of the centrochromatin to direct chromosome segregation.

Centromere Position

In our body's cells, the Centromere position is the manner that the two arms of each of our human chromosome connect at the centromere, which will be in either a metacentric, submetacentric, or acrocentric manner.
  Examples of subsets, concepts, subjects and related entities of centromeres include:

• centromere protein B
• centromere-associated protein E

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“Acrocentric Chromosomes”  

  In our body's cells, Acrocentric Chromosomes are submetacentric chromosomes with two arms of unequal length, in which the still present p arm (short arm) is very short and hard to observe.
  In our body's cells, Acrocentric Chromosomes include six acrocentric chromosomes: the medium-sized chromosomes group d (chromosomes 13, 14, 15) and the short chromosomes group g (21, 22 and Y chromosome). **

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“Metacentric Chromosomes”  

Metacentric Chromosome

  In our body's cells, Metacentric Chromosomes are chromosomes with two arms roughly equal in length.
  In our body's cells, Metacentric Chromosomes include the long chromosome group a (chromosome a) and the shorter chromosomes group f (chromosomes f). **

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“Submetacentric Chromosomes”  

Submetacentric Chromosome

  In our body's cells, Submetacentric Chromosomes are chromosomes with two arms of unequal length.
  In our body's cells, Submetacentric Chromosomes include the long chromosomes group b (chromosomes b), the medium-sized chromosomes group c (chromosomes c), and the short chromosomes group e (chromosomes e). **

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“Kinetochores”  

Kinetochore

  In our body's cells, the Kinetochores are large multiprotein complexes (structures), that bind the centromeres of the chromosomes to the microtubulal fibers of the mitotic spindle during metaphase in the cell cycle.
  Examples of kinetochore proteins include:

• constitutive centromere associated network (CCAN)

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