Genetic Engineering quiz
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Where was the glowing protein GFP first found?
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More questions about Genetic Engineering
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Which germs are often used to carry genes in gene therapy?
Answer: Viruses
Why: Some vector viruses, like retroviruses, splice the new gene into a chromosome, while adenoviruses leave it outside the chromosomes.
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Where in an insect's body does the Bt crop toxin act?
Answer: The gut
Why: Alkaline gut juices dissolve the Bt crystals, then gut enzymes trim the protein, which punches pores in gut cell membranes.
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What gene parts can bacteria NOT splice out of human RNA?
Answer: Introns
Why: Because bacteria lack spliceosomes to process pre-mRNA, scientists must insert cDNA copies made from already-spliced mRNA.
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Where does the CRISPR tool originally come from?
Answer: Bacteria
Why: Bacteria keep snippets of DNA from viruses that attacked them and use them to find and cut the same virus next time.
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What did the scientists behind GloFish want the fish to detect?
Answer: Water pollution
Why: GloFish started out as zebrafish, small striped fish that are a standard lab animal for studying genes.
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What bacterium do scientists use to slip new genes into plants?
Answer: Agrobacterium
Why: In nature, Agrobacterium inserts a stretch of its own DNA, called T-DNA, into plant cells, causing tumors called crown galls.
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