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a) Contamination by laboratory workers handling the specimens b) That the ancient DNA might infect the archeologists. c) The degradation of the DNA by chemical damage over time d) The introduction of modern DNA onto the sample by archeologists in the field site.
This homework is due tomorrow!!!!!! Please help me!!!! I need to explain how antibiotic resistance has evolved in bacteria.
I need to do a poster on Sickle Cell Anaemia. What can I do to make it interestin nd lively? Any ideas?