Genetic Engineering and Insulin Production

The video explains the evolution of insulin production from animal sources to genetically engineered human insulin using microorganisms. It introduces genetic engineering, detailing how genes are transferred between organisms to produce desired proteins. The process of inserting the human insulin gene into bacteria is described, highlighting the role of enzymes and plasmids. The video concludes with the benefits of genetic engineering in medicine and agriculture.

What was the source of insulin for diabetics many years ago?

• Cow or pig insulin

• Human insulin

• Synthetic insulin

• Plant-based insulin

Which microorganisms are used today to produce human insulin?

• E. coli and yeast

• Bacteria and molds

• Viruses and fungi

• Algae and protozoa

What is the main purpose of genetic engineering?

• To increase organism size

• To eliminate genetic diseases

• To manipulate DNA for beneficial traits

• To create new species

What is a transgenic organism?

• An organism with genes from another species

• An organism with increased lifespan

• An organism that cannot reproduce

• An organism with altered physical traits

What is the role of restriction enzymes in genetic engineering?

• To repair DNA

• To synthesize proteins

• To cut DNA at specific sites

• To replicate DNA

How is the insulin gene inserted into a bacterial plasmid?

• By using heat shock

• By using chemical transformation

• By using restriction enzymes and ligase

• By using electrical pulses

What is recombinant DNA?

• DNA that is naturally occurring

• DNA that is damaged

• DNA that has been artificially formed

• DNA that is inactive

What happens to the genetically modified bacteria in a fermenter?

• They stop producing insulin

• They reproduce asexually

• They die off quickly

• They mutate into different species

Why do bacteria express the human insulin gene?

• To compete with other bacteria

• To survive in harsh conditions

• To produce insulin for human use

• To increase their own growth rate

What is the final step in the production of human insulin using bacteria?

• Destroying the bacteria

• Extracting and purifying the insulin

• Packaging the bacteria

• Freezing the insulin