Once the dna of a person has been copied it can be compared to the dna of other people by using
a. whole animal cloning.
b. pcr.
c. gel electrophoresis.
d. bacterial plasmids.

The starting materials in a nuclear change have a total mass of 2.3465 x 10-27 kg. after the change, the resulting materials have a mass of 2.3148 x 10-27 kg. how much energy was released during the change? 2.85 x 10-12 2.08 * 10-10 j 0 211 * 10-10 j 8.56 * 10-43