Centromere - Definition, Function and Types - Biology Dictionary
Apr 27, 2017 · Centromere Definition. The centromere is the point on a chromosome where mitotic spindle fibers attach to pull sister chromatids apart during cell division. When a cell seeks to reproduce itself, it must first make a complete copy of each of its chromosomes, to ensure that their daughter cell receives a full complement of the parent cell’s DNA.
Centromere- Definition, Structure, Position, Types, Functions
Aug 3, 2023 · Centromeres are crucial in the development of a new cell. The centromere acts as a binding location for the two replicated chromosomes, known as sister chromatids, when the chromosomes are copied. Centromere dysfunction results in …
Centromere - National Human Genome Research Institute
4 days ago · The centromere appears as a constricted region of a chromosome and plays a key role in helping the cell divide up its DNA during division (mitosis and meiosis). Specifically, it is the region where the cell’s spindle fibers attach.
Centromere | chromosome, DNA, replication | Britannica
Centromere, structure in a chromosome that holds together the two chromatids (the daughter strands of a replicated chromosome). The centromere is the point of attachment of the kinetochore, a structure to which the microtubules of the mitotic spindle become anchored.
Centromere - Definition and Examples - Biology Online Dictionary
A centromere is the dense and constricted region of a chromosome. It is where the sister chromatids attach after DNA replication and kinetochore assembly (for spindle fiber attachment) take place before mitosis. It contains highly specialized repetitive DNA sequences (e.g. satellite DNA) of a chromosome linking sister chromatids forming a dyad.
Centromere Structure and Function - PMC - PubMed Central (PMC)
The centromere is the genetic locus that specifies the site of kinetochore assembly, where the chromosome will attach to the kinetochore microtubule. The pericentromere is the physical region responsible for the geometry of bi-oriented sister kinetochores in metaphase.
The molecular basis for centromere identity and function - PMC
The centromere is the region of the chromosome that directs its segregation in mitosis and meiosis. Although the functional importance of the centromere has been appreciated for over 130 years, elucidating the molecular features and properties that ...
Chromosome Segregation in Mitosis: The Role of Centromeres
One structure that plays a critical role in ensuring that this does not occur is the centromere. The centromere was first described by German biologist Walter Flemming in the 1880s as the...
Centromeres: unique chromatin structures that drive chromosome ...
May 11, 2016 · The centromere is a unique region on the chromosome that is required for attachment to the mitotic spindle and chromosome segregation.
Centromeres: unique chromatin structures that drive chromosome ...
Apr 21, 2011 · Centromeric chromatin is characterized by distinct chromatin organization, epigenetics, centromere-associated proteins and histone variants. These include the histone H3 variant centromeric...
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