The Difference Between Thymine and Uracil Is

question 67

Multiple Choice

The difference between thymine and uracil is:

• A) one methylene group on the pyrimidine ring.
• B) one methyl group on the pyrimidine ring.
• C) one hydroxyl group on the ribose ring.
• D) one amine group on the pyrimidine ring.
• E) one methyl group on the purine ring.

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