Which statement defines activation energy?

it is the sum of the maximum energy and reactant energy.

it is the sum of the product energy and reactant energy.

it is the difference between reactant energy and maximum energy.

it is the difference between product energy and reactant energy.

Option C, It is the difference between reactant energy and maximum energy.

Explanation:

The activation energy is the minimum energy required to initiate any chemical process or reaction. This energy along with reactant energy is required to break down the chemical bonds with in the reactants and start the chemical reaction.

The maximum energy is the energy contained with in the activated complex formed during the process of any chemical reaction.

Basically, this activation energy is equal to the difference  of energy of the activated complex (maximum energy) and the reactant energy.

Hence, option C is correct

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."

answer:

sequence 1- deletion

                  2- duplication

                  3- insertion

                  4- substitute

                  5- inversion