Question

work function and structure of nucleosome

Answer 1

A nucleosome is a structure in your chromosomes, or bundled DNA. Each nucleosome has a core particle, DNA, and a linker protein. The proteins in the core particle and linker proteins are called histones. The DNA will wrap around the core particle about 1.65 times and is secured by the linker protein.

Answer 2

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First, you want to know, what is nucleosome ?


● Nucleosome ●

》 A structural unit of a eukaryotic chromosome, consisting of a length of a DNA coiled around a core of histones, is called as Nucleosome.

● Structure of a Nucleosome ●

》The Nucleosome core particles contains two copies of histone protein and 146 basepairs of superhelical DNA wrapped around this histone octomer.

》It represents the first order of DNA packaging in the nucleus and as such is the principal structure that determines DNA accessibility.

● Work and Functions of Nucleosome ●

》A Nucleosome is a structure in our chromosome. So, each Nucleosome has a core particle, DNA and a linker protein i.e. histones.

》So, their function is to acting as spools around which DNA winds, and playing a role in gene regulations.

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