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GCSE Combined Science · key term
Short, exposed single-stranded sections of DNA left by some restriction enzymes, which can pair with complementary DNA ends.
Used by Edexcel
Paper 1, Paper 2
Revise: Selective Breeding and Genetic EngineeringMatch the sticky ends. Some restriction enzymes leave short, exposed single-stranded DNA sections called sticky ends. Complementary bases on the gene and plasmid ends pair together.
In Higher Tier answers, restriction enzymes cut DNA; ligase joins DNA. Sticky ends are parts of the cut DNA, not enzymes.
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