Why do sds coated polypeptides serperate in a gel, when placed in an electrical field?

Explanation: SDS coated polypeptide separate in a gel when placed in an electric field, because SDS coated proteins are negatively charged while the electric field is politely charged. this will cause the proteins to move. the proteins that will move farthest is the smaller ones because it is easier to migrate through the gel.

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.