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.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'