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DNA Technology
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What is DNA Technology? DNA technology is the manipulation of genes to create genetically modified organisms Biotechnology: use of organisms or their products to improve human health and food production
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How long has this been happening?
For thousands of years, humans have been selectively breeding organisms for their desired traits Hence the names purebred and hybrid
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Genetic Engineering Genetic engineering takes a set of genes from one organism and inserts them into another The two different pieces of DNA join they are called recombinant DNA
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Plasmids Scientist also transfer DNA from a complex organism to a bacteria. Bacteria have a ring of DNA called a plasmid. Scientists open the plasmid to insert the new genes inside.
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Plasmids continued The plasmid (with both human and bacteria DNA) is reinserted into the bacteria. The bacteria grows and reproduces. The bacteria will make copies of the new genes along with their own
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Cloning Genetically identical individuals are made created from a single cell The egg from the donor is fused with the nucleus of another cell. When fused they begin to grow and divide. When it begins to grow placed inside a host mother, and develops into an offspring. The offspring will be genetically identical to the animal that donated the nucleus.
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Human Genome Project The mapping and sequencing of all the DNA and genes in a human
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Gel Electrophoresis Comparing of DNA
When they are run through gel Electrophoresis, DNA can be sorted by size. The pattern produced gives us a DNA “fingerprint” of an individual.
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