Explain how bacteria are both helpful and harmful to our bodies. Requirements: A paragraph with enough details.
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Hello! Here is your Bacteria can be good, because they help produce oxygen, decompose waste, and help in medicine. They also help us digest food and live. Some other bacteria are harmful, because they can cause harmful diseases.

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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.'