NURSING EXAM QUESTIONS
MICROBIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bacteria make human cells that make insulin.
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Human insulin made by bacteria is injected into humans.
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Bacteria that make insulin are implanted in humans
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Human insulin coding bacterial genes are spliced into human cells.
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Detailed explanation-1: -Which statement correctly describes a way that bacteria are used in biotechnology? Bacteria make human cells that make insulin.
Detailed explanation-2: -Recombinant DNA is a technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium. This “recombinant” micro-organism could now produce the protein encoded by the human gene. Scientists build the human insulin gene in the laboratory.
Detailed explanation-3: -These bacteria are then allowed to grow and replicate, which allows the plasmid and the insulin gene to replicate millions of times. Then the bacteria are given a signal to produce the protein, and insulin identical to that of humans can be produced and purified.
Detailed explanation-4: -Synthetic human insulin was the first golden molecule of the biotech industry and the direct result of recombinant DNA technology. Currently, millions of diabetics worldwide use synthetic insulin to regulate their blood sugar levels. Synthetic insulin is made in both bacteria and yeast.