The complementary strands of DNA can be separated and re-associated by heating and cooling
One strand of DNA specifies the sequence of the other strand
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Used to make more copies of DNA from a tiny DNA sample
http://www.sumanasinc.com/webcontent/animations/content/pcr.html
Slide 19
Polymerase Chain Reaction (PCR) Amplifies DNA
Primers specify what DNA is copied
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Diagnosis
Epidemiology
Genetic engineering
Slide 21
Slide 22
Making recombinant vaccinations
Making food crops with immunity to insects
Forensic Crime scene analysis –
DNA profiling
Real World Applications
Slide 23
Ethical issues related to “cloning” of human genes
How will genetically engineered organisms affect environment?
Spread of genes to other organisms?
Who will decide?
Slide 24