DNA hybridisation
What DNA hybridisation means in Biology A-Level, as defined for AQA.
Definitions of DNA hybridisation
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Reference: AQA
The binding of labelled DNA probes to complementary sequences after the DNA has been made single-stranded.
The probe binds to the complementary sequence of the target allele via hydrogen bonding.
Topics that use DNA hybridisation
- Differences in DNA between individuals of the same species can be exploited (AQA A-Level)
- Genetic fingerprinting (A-level only) (AQA A-Level)
Related terms
- gel electrophoresis
- genetic counselling
- informed decision
- labelled DNA probes
- locating alleles
- PCR amplification
- preventing inbreeding
- restriction endonucleases and Southern blotting
Using DNA hybridisation in the exam
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