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A scientist made a radioactively labeled probe using viral DNA. If the probe
hybridizes with a small piece of DNA isolated from human tissue, the
scientist could conclude any of the following except:
A. the virus contaminated the reaction that made the probe.
B. the Geiger counter that detected radiation was broken.
O C. the human genome might contain at least one viral gene.
D. the virus uses a different genetic code than humans.