28. A police detective finds a speck of blood at a crime scene. He knows that there is not enough DNA in the sample for the crime lab to use directly. What is likely the first step that the crime lab will

28. A police detective finds a speck of blood at a crime scene. He knows that there is not enough DNA in the sample for the crime lab to

use directly. What is likely the first step that the crime lab will take in order to have enough DNA to work with?
A. Clone the DNA sample in bacteria
B. Do a DNA fingerprint
directly on the sample
C. Use the polymerase chain reaction on the sample
D. Use restriction enzymes to digest the sample into smaller pieces

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