Biotechnology and Genetic Engineering IGCSE

Which of these is an advantage of producing human insulin using human genes inserted into bacteria

• The insulin could be from different species

• Large amounts of insulin are produced quickly

• Depends on donations from other humans

• Irregular supply

In which ways can genetic engineering can improve crops

• Make them pest or drought resistant

• Make them more nutritious

• Make them larger

• All answers are correct

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What are genetically modified (GM) organisms and GM foods?

• Foods or organisms with better taste
• Foods or organisms grown in the USA, only
• Foods or organisms with DNA modified in a way that doesn't occur naturally
• Food and organisms that have been injected with hormones

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Concerns about genetically modified organisms include(s)

• risk to human health
• may be harmful to ecosystems
• seed/pollen drift to organic farms
• all of these are valid concerns

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What is the function of the air inlet in the ferementer?

• Provide clean air

• Provide oxygen for the aerobic respiration of microrganisms

• Provide carbon dioxide for the anaerobic respiration of microrganisms

• Mixes the solution to keep nutrients and temperature evenly distributed.

What is the function of the stirring paddles in the ferementer?

• Allows sterile nutrients for the microorganisms to grow and reproduce.

• Provide oxygen for the aerobic respiration of microrganisms

• Provide carbon dioxide for the anaerobic respiration of microrganisms

• Mixes the solution to keep nutrients and temperature evenly distributed.

A new variety of rice called golden rice has been genetically modified to have vitamin A. People in starving countries can eat this rice and receive the vitamin A. Without this rice people go blind from vitamin A deficiency. What word(s) below best describes this rice?

• electrophoresis
• DNA fingerprinting
• G.M.O
• clone

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Which enzyme would be added to fruit in order to create a larger volume of juice out of the plant cells?

• Amylase

• Maltase

• Pepsin

• Pectinase

This is the practice of inserting the DNA of another species into an organism's DNA so that the organism gains a new trait.

• Cloning

• Gel Electrophoresis

• Genetic Engineering

• DNA Fingerprinting

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Why did scientists edit the genes of bacteria to produce insulin?

• Because the bacteria were diabetic

• Because bacteria have simple DNA that is easier to manipulate, making it easy to produce insulin in a lab

• Because bacteria's complex DNA was perfect for insulin production

• Because insulin has no use outside of a lab setting

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