The Study of Ancient DNA (ADNA) Received a Significant Boost

question 30

Multiple Choice

The study of ancient DNA (aDNA) received a significant boost with the development of the polymerase chain reaction (PCR) technique -- a method for the accurate recovery of even minute amounts of DNA. This research advancement also created a new research problem;

• A) now there are so many samples that could be tested, there is no way they can all be analyzed.
• B) analysis is now only possible, worldwide, in three highly specialized lab.
• C) there is now a much greater possibility of contamination of ancient DNA samples with DNA from lab workers.
• D) the ancient DNA sequences recovered by the PCR technique are scrambled.
• E) any ancient DNA recovered is damaged and degraded by the PCR technique.

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