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Genetics, Evolution and Ecosystems
Quick questions on Gene technology: recombinant DNA, PCR and DNA profiling - CCEA A-Level Biology
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
State the role of restriction enzymes and DNA ligase in genetic engineering. [2 marks]
What is q2?Show answer
Explain how gel electrophoresis separates DNA fragments. [2 marks]
What is q3?Show answer
Starting with 5 copies of a DNA sequence, calculate how many copies are present after 4 PCR cycles. [2 marks]
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