Why is it important that the electrons and protons are attracted to each other in an atom?

Explanation:When electrons and protons come close, they are attracted to each other. If they were not, then the electrons would move away from the nucleus. ... Therefore, keeping the electrons in the nucleus by making the protons attracting them will make the atom stay the same.

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."