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18-08-2016
Biology

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why does dna contain thymine but rna contains uracil?

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itsssamannn itsssamannn

18-08-2016

Thymine is harder to make, but more stable. DNA needs to keep information safe for a long time, so it makes sense to use thymine. But RNA is made and used quickly, and small mistakes don’t matter as much, so the easier to make uracil does the job.

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