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Genetic information, variation and relationships between organisms
(AQA AS Biology) PART 1 of 6 TOPICS

DNA, genes and chromosome:
Prokaryotic cells have short, circular DNA molecules that are not associated with proteins known as

Eukaryotic cells have long, linear DNA molecules which are associated with histone proteins.
Chromosomes are…

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It is non-overlapping: Only one base is used for a triplet
It is degenerate: Many triplets can code for an amino acids


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