Why do you think it's important for scientists to study Earth's past climates? What information
are scientists likely to gain from investigating the
Earth's past? Since the data obtained by
paleoclimatologists is not based on direct
observations, can their discoveries and models
be trusted? Why or why not?

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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.'

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explanation: