Which of the following is a protein that is rich in basic amino acids and that functions in the packaging of DNA in chromosomes?: (A) Histone, (B) Collagen, (C) Fibrinogen, (D) Hyaluronic acid binding protein
Answer is A. Histones are proteins containing unusually higher concentration of basic aminoacids. It functions in the packaging of DNA in the chromosomes. Ref: Vasudevan, Biochemistry, 3rd Edition, Page 345