Question

What are histones and nucleosomes?

Answer 1

Nucleosomes:

1. The nucleosomes can be characterized as the structure blocks which are liable for the organizing and pressing of the DNA that is held inside the chromosome.
2. The fundamental structural component of DNA packaging in eukaryotes is a nucleosome.
3. A nucleosome's structure, which resembles a thread wound around a spool, is made up of a segment of DNA wound around eight histone proteins
4. . The core component of chromatin is the nucleosome. A histone octamer, which is an eight-protein set called histones, surrounds a little less than two turns of DNA in each nucleosome. The histone proteins H2A, H2B, H3, and H4 each make up two copies of the histone octamer.

Histones:

1. Histones are fundamental proteins with positive charges that permit them to tie to adversely charged DNA.
2. There are a few histones that go about as spools around which the string-like DNA wraps.
3. DNA structure. The majority of DNA is found in a cell's nucleus, where it takes shape as chromosomes.
4. Histone proteins, which are found in chromosomes, bind to DNA.
5. A helix is a shape that two strands of DNA take when they are twisted together. The four nucleotides that makeup DNA are adenine (A), thymine (T), guanine (G), and cytosine (C)