Question

Which of the following statements is TRUE regarding a basic amino acid? The positively charged R group of a basic amino acid could bind DNA. All of these choices are correct. The hydrophilic R group of a basic amino acid will be located in the interior of a protein. A basic amino acid would be considered both polar and hydrophobic. The R group of a basic amino acid would only be able to form covalent bonds with other molecules.

Answer 1

Answer is A. The positively charged R group of a basic a.a could bind to DNA.

Basic amino acids have a positive charge and acidic amino acids have a negative charge. DNA also has negative charge because of the phosphate group in nucleotides. So they have opposite charges and can form ionic bonds.
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