Question:
Two bases are mentioned below, identify which is present in DNA and which one is present in RNA:
(i) Thymine
(ii) Uracil.
Two bases are mentioned below, identify which is present in DNA and which one is present in RNA:
(i) Thymine
(ii) Uracil.
(i) Thymine
(ii) Uracil.
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Thymine is found in DNA, while uracil is found in RNA. Both are pyrimidines, but thymine is replaced by uracil in RNA.
Updated On: Feb 25, 2025
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Solution and Explanation
- Thymine is present in DNA, where it pairs with adenine in double-stranded DNA.
- Uracil is present in RNA, where it pairs with adenine in RNA during transcription. Thymine is replaced by uracil in RNA.
Step 1: Thymine is part of the nucleotide structure in DNA, whereas uracil is found in RNA.
Step 2: Both thymine and uracil are pyrimidine bases, but uracil is unique to RNA.
- Uracil is present in RNA, where it pairs with adenine in RNA during transcription. Thymine is replaced by uracil in RNA.
Step 1: Thymine is part of the nucleotide structure in DNA, whereas uracil is found in RNA.
Step 2: Both thymine and uracil are pyrimidine bases, but uracil is unique to RNA.
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