What is the basic function of catabolic operons like the lac operon? A. To find an alternative energy source when glucose is absent or not present in sufficient amounts
B. To find an alternative source of carbon when glucose is absent or not present in sufficient amounts
C. To find an alternative source of carbon regardless of the amount of glucose present

answer; ///i do believe the answer is (virus);

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.'