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Recombinant DNA and Polymerase chain reaction
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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

Slide 18

Polymerase Chain Reaction

Polymerase Chain Reaction

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

Polymerase Chain Reaction (PCR) Amplifies DNA

Primers specify what DNA is copied

Slide 20

PCR Amplifies DNA

PCR Amplifies DNA

Diagnosis

Epidemiology

Genetic engineering

Slide 21

Flow Chart of PCR

Flow Chart of PCR

Slide 22

Production of Insulin

Production of Insulin

Making recombinant vaccinations

Making food crops with immunity to insects

Forensic Crime scene analysis –

DNA profiling

Real World Applications

Slide 23

Other Issues

Other Issues

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

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