Which choice BEST describes the interaction between DNA and a histone?
A) The negative charges on a histone attract the positive DNA.
B) The positive charges on a histone attract the negative DNA.
C) Hydrogen bonding occurs between a histone and DNA.
D) DNA forms a covalent bond with a histone.
E) There is a phosphate bond between a histone and DNA.

Question

Quizplus · Accepted Answer

Histones are proteins with a positive charge due to the presence of amino acids like lysine and arginine. DNA is negatively charged because of its phosphate backbone. The positive charges on histones attract the negative charges on DNA, facilitating the wrapping of DNA around histones to form nucleosomes, a fundamental unit of chromatin structure. This interaction is primarily electrostatic and not based on hydrogen bonding, covalent bonding, or phosphate bonding.

Which Choice BEST Describes the Interaction Between DNA and a Histone