Question

Histones are rich in amino acids

• A. Arginine and lysine
• B. Lysine and histidine
• C. Valine and histidine
• D. Arginine and histidine

Answer 1

The correct option is A Arginine and lysine

• Nucleosomes are the basic unit of DNA packaging which consists of a segment of DNA wrapped in sequence around eight histone protein core.
  
• Histones are small alkaline proteins which have a high amount of basic amino acids (arginine and lysine).
  
• So, the correct answer is 'Arginine and lysine'.