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6.4 Manipulating the Genome
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Genetic Engineering Bacteria producing insulin Round-up ready crops
Inserting foreign genes into organisms, especially food, to improve the species.
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Restriction enzymes A molecule that can cut DNA at a specific site
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Recombinant DNA Making DNA that doesn’t already exist in nature.
A fragment of DNA consisting of nucleotide sequences from at least two different sources.
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Example Antifreeze gene from an arctic cod is added to a plant
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Spider silk Spider silk is 5x stronger than steel, 2x as strong as kevlar, waterproof, ductile, stretches 30% more elastic than nylon. The gene for producing spider silk is being inserted into plants and even goats!
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Bt corn Bt corn has a gene added from Bacillus thuringiensis (Bt) that makes natural pesticides.
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Issues Escape of gene into other plants?
Possible allergic reactions to new corn? Diversity of corn decreases if most farmers choose to plant this variety?
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