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What are chromosomes and why are they called seat of hereditary information

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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.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
Chromosomes are those that carry hereditary characteristics from one generation to next generation DNA.
They are called the seat of hereditary information because they carry hereditary characteristics to next generation DNA

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