Biology · Molecular Biology
Which of the following evolutionary and biochemical reasons best explains why uracil is used in RNA instead of thymine?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Uracil is energetically less expensive to synthesize✓
- 2Thymine directly inhibits transcription
- 3Uracil enhances RNA splicing accuracy
- 4Thymine is not recognized by ribosomes
Correct answer
Uracil is energetically less expensive to synthesize
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