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DNA Manipulation Diabetes Genetic Engineering Bacteria Plasmid
Animals Drugs Bacteria Plasmid Biopharming Transgenic Organisms Knockout Mice Cloning
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DNA Manipulation Genetic Engineering Cloning
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Diabetes _________________
Many people require insulin injections to survive Insulin allows glucose to be transferred from the blood into cell Approximately 5% of all deaths are caused by diabetes.
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Due to the need, actual human insulin is now mass-produced
They insert the human insulin gene into bacteria, and the bacteria makes human insulin. ________________
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________________ The E. coli (bacteria) transcribes and translates the piece of human DNA to make the human protein insulin, which is then harvested from the bacteria and put into a container to be used. …………..
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The first step in genetic recombination is to isolate, …………
You must also cut the circular plasmid (from the bacteria) to make it linear ________________
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You then insert your DNA segment into a bacterial plasmid using DNA ligase
_____________ ……………
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Biopharming ________________
Molecular biologists can introduce new functions into an organism. Today, scientists use genetic engineering to find cures for various diseases that affect animals and plants.
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………….. This could cause the host organism to produce a certain protein, such as insulin or clotting factors which is useful to us. E.g. Allow us to become resistant to certain diseases, grow human organs, grow faster, etc. ________________
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Why Use Transgenic Plants and Animals?
Cost - animal and plant based methods are usually more economical (cheaper) than operating a laboratory with controlled bacterial populations. ________________
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Knockout Mice ________________
They are used to study the purpose of each gene. If a gene is turned off, you can more easily see what it does.
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Cloning ________________
It has been used for many years to produce plants (even growing a plant from a cutting is a type of cloning). The first cloned mammal (Dolly) was born in 1997 …………
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Why Clone? The main reason to clone plants or animals is to mass produce organisms with desired qualities, such as prize-winning apples or a genetically engineered animal that produce more milk, beef, etc. ______________
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Issues Deciding exactly where to draw the line on transgenic organisms and cloning is difficult. What is acceptable and what isn’t? Do the …………..
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