Seth is chatting with his friends in a café. suddenly, the power goes off, and it’s completely dark. after a few moments, he’s able to see the outlines of the objects and people nearby. which cells are responsible for his ability to see the objects and people? a. cone b. glial c. olfactory d. rod

The answer is D. rod.

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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.'