You can see some blood vessels on the outside of the hands specially in older people. Are those veins or arteries? How can you confirm your answer? Explain properly please.

I think this is the answer/ Solution: The blood vessels that we see on the outside of hands especially in older people are the veins because arteries are deeply buried in the skin with several layers. They are superficially present outside the skin.

Explanation:

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.'