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MDCAT Biology QUESTION #4179
Question 1
In chromosome, positively charged histone proteins are organized with negatively charged DNA. The positive charges of histone are due to an abundance of basic amino acids:
  • arginine and alanine
  • arginine and lysine✔️
  • lysine and alanine
  • phenylalanine and arginine
Correct Answer Explanation
Arginine and lysine are basic amino acids with positive charges that bind to negatively charged DNA.