Final answer:
Histones are basic proteins that bind to DNA and contain the amino acids lysine and arginine.
Step-by-step explanation:
Histones are basic proteins that bind to DNA. They contain the amino acids lysine and arginine. These amino acids have positively charged side chains, which enable them to bind to the negatively charged phosphodiester backbone of DNA. Lysine and arginine are essential for the formation of nucleosomes, which are the basic units of DNA packaging in cells.