Final answer:
The high proportion of basic amino acids in histone proteins aids in the formation of nucleosomes, These positively charged side chains enable histones to bind to the negatively charged phosphodiester backbone of DNA.
Step-by-step explanation:
The high proportion of basic amino acids in histone proteins aids in the formation of nucleosomes.
Histone proteins, which are basic in nature due to the presence of arginine and lysine amino acids, contain positively charged side chains.
These positively charged side chains enable histones to bind to the negatively charged phosphodiester backbone of DNA, allowing the DNA to wrap around the histone octamer to form nucleosomes.