LIFE SCIENCE

Detailed explanation-1: -Each nucleosome is made of DNA wrapped around eight histone proteins that function like a spool and are called a histone octamer. Each histone octamer is composed of two copies each of the histone proteins H2A, H2B, H3, and H4.

Detailed explanation-2: -A type of protein found in chromosomes. Histones bind to DNA, help give chromosomes their shape, and help control the activity of genes. Structure of DNA. Most DNA is found inside the nucleus of a cell, where it forms the chromosomes.

Detailed explanation-3: -Histones proteins are basic. They predominantly contain two basic amino acids-lysine and arginine.

Detailed explanation-4: -Chromosomal DNA is packaged inside microscopic nuclei with the help of histones. These are positively-charged proteins that strongly adhere to negatively-charged DNA and form complexes called nucleosomes.

Detailed explanation-5: -Eight histone proteins can come together to make up something called a nucleosome. A nucleosome is like a tiny spool that DNA can wind around. So histones play an important part in keeping the genome organized and wrapped neatly within a cell.