Final answer:
Histones are proteins that have a high content of the amino acids lysine and arginine. They play a crucial role in DNA packaging by wrapping around the DNA to form nucleosomes.
Step-by-step explanation:
Histones are proteins that have a high content of the amino acids lysine and arginine. These amino acids have positively charged side chains, which allows them to bind to the negatively charged phosphodiester backbone of DNA. Histones play a crucial role in DNA packaging by wrapping around the DNA to form nucleosomes. They are basic in nature and found in the nucleus.