Restriction enzymes
Salam Academy Original Practice · Proposed mark scheme
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DNA ligase
Salam Academy Original Practice · Proposed mark scheme
Reverse transcriptase makes
Salam Academy Original Practice · Proposed mark scheme
The same restriction enzyme cuts the gene and plasmid so that
Salam Academy Original Practice · Proposed mark scheme
Starting with 10 copies, how many DNA copies are there after 20 PCR cycles (in millions, 3 s.f.)?
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In PCR, the temperature of about 95 °C is used to
Salam Academy Original Practice · Proposed mark scheme
Taq polymerase is used in PCR because it
Salam Academy Original Practice · Proposed mark scheme
In gel electrophoresis, DNA moves towards the anode because
Salam Academy Original Practice · Proposed mark scheme
The fragments that travel furthest in a gel are
Salam Academy Original Practice · Proposed mark scheme
A linear DNA molecule has 4 restriction sites. How many fragments form after complete digestion?
Salam Academy Original Practice · Proposed mark scheme
A gene for green fluorescent protein is used as a marker to
Salam Academy Original Practice · Proposed mark scheme
A promoter is added with the gene so that
Salam Academy Original Practice · Proposed mark scheme