Biology A-Level
density gradient centrifugation
What density gradient centrifugation means in Biology A-Level, as defined for AQA.
Definition of density gradient centrifugation
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Reference: AQA
A method in which DNA is centrifuged in a density gradient, settling at a level matching its density, with heavier DNA settling lower in the tube.
Topics that use density gradient centrifugation
- DNA replication (AQA A-Level)
Related terms
- complementary base pairing
- DNA polymerase
- genetic continuity
- heavy isotope labelling
- Meselson and Stahl
- semi-conservative replication
- sister chromatids
- template strand
Using density gradient centrifugation in the exam
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