Biology, asked by narinderkalya7112, 9 months ago

Difference between centrosomes and chromosomes.

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Answered by bchreddy39gmailcom
1

Answer:

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Explanation:

The centromere is a part of a chromosome that links the sister chromatids or dyads. The spindle fibers attach to it during mitosis.

Centrosome is the organelle where all the cell microtubules get organized.They occur only in animal cells.

Explanation:

Also, centrosomes regulate the cell division cycle.

On the other hand, a centriole is a small set of microtubules arranged in a specific way. There are nine groups of microtubules. The centrioles are found in pairs and move towards the poles of the nucleus during the cell division.

What is a chromosome?

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing. However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.

Each chromosome has a constriction point called the centromere, which divides the chromosome into two sections, or “arms.” The short arm of the chromosome is labeled the “p arm.” The long arm of the chromosome is labeled the “q arm.” The location of the centromere on each chromosome gives the chromosome its characteristic shape, and can be used to help describe the location of specific genes.

DNA and histone proteins are packaged into structures called chromosomes.

DNA and histone proteins are packaged into structures called chromosomes.

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