70) The polymerase chain reaction (PCR) can do all the following EXCEPT
A) use small amounts of DNA.
B) make millions of copies of a particular gene.
C) identify the complete sequence of a gene.
D) make copies of DNA cheaply.
) VNTRs are
A) fragments of DNA treated with restriction enzymes.
B) DNA of specific genes.
C) sequences of DNA that everyone has in different numbers.
D) sequences of DNA that are different in sequences and in numbers in different individuals
64) A DNA fingerprint of a suspect doesn't match a DNA fingerprint from a blood sample taken at a crime scene. What can you conclude?
A) The suspect was never at the crime scene.
B) Since DNA fingerprinting is prone to error, the suspect may have been there.
C) The blood sample was probably degraded or destroyed in some way.
D) There is no DNA in a blood sample.
E) The suspect may have been there even if the blood came from a different person
65) Different persons have different DNA fingerprints because
A) they have different kinds of VNTRs.
B) they have different numbers of the same VNTR.
C) PCR generates some sequences more than other sequences.
D) restriction enzymes may not cut some VNTRs if adjacent to different DNA sequences