EASY
AS and A Level
IMPORTANT
Earn 100

Explain how selective breeding differs from genetic engineering.

Important Questions on Genetic Technology

MEDIUM
AS and A Level
IMPORTANT
Four different lengths of DNA, A to D, were cut with the restriction enzyme EcoRI. These fragments had the following numbers of restriction sites for this enzyme: A- 5, B- 7, C- 0, and D- 3. State the number of fragments that will be formed from each length of DNA after incubation with EcoRI.
HARD
AS and A Level
IMPORTANT

Describe the features of the restriction sites shown in the table below.

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MEDIUM
AS and A Level
IMPORTANT
Explain the advantages of using restriction endonucleases in genetic engineering.
HARD
AS and A Level
IMPORTANT
Summarise the advantages of using plasmids as vectors in genetic engineering.
HARD
AS and A Level
IMPORTANT
Make a diagram to show how a piece of DNA is cut by restriction enzymes and then inserted into a plasmid. Show both strands of DNA in your diagram.
HARD
AS and A Level
IMPORTANT
Would all the bacteria emitting fluorescence have taken up the gene that it is expected was inserted into them? Explain your answer.