2017年4月27日 · 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.

The centromere links a pair of sister chromatids together during cell division. This constricted region of chromosome connects the sister chromatids, creating a short arm (p) and a long arm (q) on the chromatids.

The centromere is the region which separates a chromatid into two arms. It is the site of the duplicated chromosome around which the kinetochore is present to attach to the microtubules of the spindle fibres.

2023年8月3日 · 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, 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.

3 天之前 · 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.

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.

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.

2024年5月16日 · A centromere is a constricted region of a chromosome that splits the whole chromosome during cell division. The centromere keeps the two arms of the chromosome together and splits the whole chromosome into a short part (p) and a long part (q).

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 ...