Which Best Describes a Centromere Open Study

What is the primary role of a centromere. Which Best Describes a Centromere Open Study.

How Is A Centromere How Does The Position Of Centromere Form The Basic Of Classification Of Chromosomes Quora

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. A centromere is a region on a chromosome that joins sister chromatids. Centromeres that are very close to one end of the chromosome are called acrocentric. A region of the chromosome.

The chromosomes in which the centromere is present in the middle and divides the chromosome into two equal arms is known as a metacentric chromosome. This article explains 1. Other Apps - April 22 2022 Which best describes the interaction between DNA and RNA during protein synthesis.

Hold sister chromatids together B organize the mitotic spindle C house centrioles D nuclear localization E nuclear envelope stability 8 Chromosomes line up along the middle of the spindle in this phase of mitosis. The component of centromere is mainly the kinetochore and DNA associated proteins. The idea behind this centromere drive model is that each of the four copies of a chromosome goes to a distinct area of the cell and the spindles might be induced to favor pulling one towards the zone that becomes the egg.

During anaphase they appear V-Shaped. Fusion of chromosomes or duplication of chromosome sequences can lead to chromosomes with. In this one arm is extremely long and the other is extremely short.

Both proteins play a role in holding the two sister chromatids together during the nuclear division. Central region of the chromosome where the protein complex called the. Centromere transcription has been proposed to affect several aspects of centromere function from CENP-A assembly to mitotic kinetochore signaling.

A centromere is a constricted region of a chromosome that separates it into a short arm p and a long arm q. Which best describes a centromere Advertisement Answer 40 5 30 ali0303 A centromere is the part of the chromosome that joins the two sister chromatids. Of the following best describes the kinetochore.

Centromere is approximately located in the middle of a chromosome and telomere is located at the two ends of each sister chromatid. During anaphase they appear J-shaped. Centromere the point on a chromosome by which it is attached to a spindle fiber during cell division.

Chromosomes are divided into four types based on the position of the centromere. To understand how centromere transcription may affect all of these processes it is worthwhile to examine the timing of centromere transcription in relation to these various proposed functions Fig. The centromere is a very restricted DNA region in the middle of the chromosome.

The centromere is a multifunctional chromosomal region responsible for modulating sister chromatid inter- action ensuring chromosomal integrity integrating the chromosome with spindle microtubules and mediating chromosome movement. Serves as the center point of all cells. The chromosome in which the centromere is located close to one of the terminal ends is known as an acrocentric chromosome.

Amino acids form peptide bonds. Centromere consists of constricted centric heterochromatin which is associated with cohesins and kinetochores. When microtubules of the spindle are attached at the centromere of metaphase chromosomes consisting of two.

The centrosome is an organelle in an animal cell that serves as the organising centre for all microtubules. The creation of spindle threads which segregate chromosomes during cell division is aided by these tube-like structures. During cell division the chromosomes first replicate so that each daughter cell receives a complete set of chromosomes.

The centromeres are also involved in separating the chromosome into a short arm p and a long arm q. The chromosome in which the centromere is located at one of the terminal ends is known as a telocentric. A structure composed of several proteins that associate with the centromere region of a chromosome and that can bind to spindle microtubules the centromere region of a metaphase.

Join Login Class 11 Biology Cell Cycle and Cell Division Cell Cycle Which term best describes the nuclear ma. See answer 1 Best Answer. Science Final 7 Flashcards.

Sister chromatids are double-stranded replicated chromosomes that form during cell division. Central region of the chromosome which consists of highly constricted DNA. Updated on February 23 2019.

If you look at a picture of a chromosome you can see a small bundle of material in between the two connected chromatids. The main difference between centromere and kinetochore is that centromere is the region where the two sister chromatids are held together after the replication of chromosome where kinetochore is the protein complex on the chromosome where spindle fibers are attached during cell division. Serves as an organizing center of microtubules in an animal cell.

It is the specialized DNA sequence in the chromosomes that links or holds together the pair of sister chromatids. What are Centromeres Centromeres can be defined as the compressed region or a part of elongated chromosomes. Hope this helps Still stuck.

Acro means top or extremity. Start studying Chapter 12. A teloplase B anaphase meteplase D prophase E.

Chromatid each of the two threadlike strands into which a chromosome divides. I Metacentric chromosome. The primary function of the centromere is to serve as a place of attachment for spindle fibers during cell division.

Learn vocabulary terms and more with flashcards games and other study tools. The centromere is also important in mitosis. Telocentric centromeres are positioned at the very end of a chromosome.

Spindle fibres or microtubules are attached at this point which helps in moving the chromosomes or chromatids to the poles during cell division.

How Is A Centromere How Does The Position Of Centromere Form The Basic Of Classification Of Chromosomes Quora

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Centromere