Proteins that interact with DNA often interact with the phosphates that are part of this molecule. Which of the following types of amino acids would you predict to be present in the DNA binding sites of these proteins?

a. acidic amino acids
b. nonpolar amino acids
c. uncharged polar amino acids
d. basic amino acids

Option D) basic amino acids

Explanation:

Since the phosphates occupying the 5' end of DNA bear negative charge due to the previous dissociation of hydrogen atoms, ONLY portions of the interacting protein bearing positive charge serve as binding sites.

These portions of proteins with positive charge is made up of basic amino acids like lysine and arginine, as they have an extra amino acid in their side chain, and are attracted to phosphate molecules with negative charges.

Thus, basic amino acids will serve as binding sites

cancer   is   essentially   uncontrolled   mitosis   of specialized cells

explanation:

the universal gravitation equation. since the gravitational force is directly proportional to the mass of both interacting objects, more massive objects will attract each other with a greater gravitational force. if the mass of one of the objects is doubled, then the force of gravity between them is doubled.