What is the density of an object with a mass of 35 grams and volume of 7cm3

5 g/cm³

Explanation:

density (p) is equal to mass (m) divided by volume (V)

In this case the density = 35/7 = 5

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."