Changes in environmental conditions can drive evolution of populations by a. increasing the rate of mutations in the gene pool.
b. causing different traits to be favored within a gene pool.
c. creating new niches to open up for organisms to make use of.
d. all of the above.

answer; /// i believe that the correct answer is (50%);

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."