A customer drives up with a 100 lb cylinder securely fastened to his pickup and asks to have his tank filled. You are the only person at the center right now. What is the first thing you do?

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

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.'