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3.8 The control of gene expression
Quick questions on Gene probes and medical diagnosis - AQA A-Level Biology 3.8
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
Explain why a DNA probe must be single-stranded to detect a specific allele. [2 marks]
What is q2?Show answer
Explain why VNTRs are more useful than genes for identifying individuals. [2 marks]
What is q3?Show answer
Describe how gel electrophoresis separates DNA fragments. [3 marks]
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