Deoxyribonucleic Acid Restriction enzymes

Deoxyribonucleic Acid restriction enzymes can be used to do all of the following except; to insert a gene in a plasmid,

-cut repetitive DNA for identification of a person

-make recombinant DNA

-to copy DNA

9. a mom dog has black fur BB, the father dog has white fur bb.

Bb is gray fur.

if the mom and dog have puppies, what is the ratio of black to gray to white fur?