Genetic Fingerprinting (AQA A-Level Biology): Flashcards
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What technique creates unique DNA identification profiles?
What technique creates unique DNA identification profiles?
Genetic fingerprinting
What does VNTR stand for?
What does VNTR stand for?
Variable Number Tandem Repeats
% of human DNA that's non-coding
% of human DNA that's non-coding
Approximately 95%
In gel electrophoresis, which fragments move further?
In gel electrophoresis, which fragments move further?
Smaller fragments
Genetic fingerprinting Stage 1
Genetic fingerprinting Stage 1
Extraction
Genetic fingerprinting Stage 2
Genetic fingerprinting Stage 2
Digestion
What's added in hybridisation stage?
What's added in hybridisation stage?
Radioactive DNA probes with complementary base sequences
Stage 5 creates what pattern?
Stage 5 creates what pattern?
Dark bands on X-ray film
Huntington's: repeats for almost certain development
Huntington's: repeats for almost certain development
Over 38 AGC repeats
Forensic genetic fingerprinting use
Forensic genetic fingerprinting use
Compare crime scene DNA with suspects