Human Health and DiseaseEasy
Question
DNA finger-printing has become a familiar forensic tool and has been cited in recent criminal trials. It is possible to do DNA finger-printing with even a very minute sample of DNA because :
Options
A.DNA contains only four different types of nitrogenous bases
B.There are large quantities of DNA in each cell of the body
C.DNA determines a very specific polypeptide chain
D.One can use the polymerase chain reaction
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