What is the result of a change in DNA?

The result of a change in DNA is that there will be a mutation of some sort. This could be a nonsense mutation which would not code for anything, it could be a missense mutation that results in the substitution of one amino acid for another in the protein made by a gene, an insertion which changes the number of DNA bases in a gene by adding a piece of DNA and as a result the protein made by the gene may not function properly, a deletion which changes the number of DNA bases by removing a piece of DNA, a duplication which consists of a piece of DNA that is abnormally copied one or more times, or a frameshift mutation which occurs when the addition or loss of DNA bases changes a gene's reading frame. A reading frame consists of groups of 3 bases that each code for one amino acid.

explanation:

plz give me the characteristics.

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."