People in a small remote village of Peru have developed a viral infection. Scientists hypothesize that the virus is being transmitted by mosquitoes. The
scientists look for the virus in a sample of 100 mosquitos from a nearby wooded
area to the east of the village. When the scientist finds no mosquitoes, they
conclude that the residents are not getting the virus from area mosquitoes. What
is the source of the scientists error? *

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.'