Carbon atoms have four electrons in their outer shell. This means that a single carbon atom can form up to bonds with other atoms.

four

Explanation:

Carbon atoms have four electrons in their outer shell. So, it exhibits tetravalency & thus, a single carbon atom can form a maximum of four (4) bonds with other atoms

b is dominant over the allele for the white fur.

it marks things for degradation via the proteasome. it alters there celluar location.