Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test (DAT) with our comprehensive practice test. Study effectively with flashcards and multiple-choice questions, each with detailed hints and explanations. Get ready to ace your exam and secure your future in dentistry!

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Which of the following is not a pyrimidine base found in nucleic acids?

  1. Adenine

  2. Thymine

  3. Uracil

  4. Cytosine

The correct answer is: Adenine

Adenine is a purine base, rather than a pyrimidine base, and is found in both DNA and RNA. Option B, thymine, is a pyrimidine base and is found in DNA. Option C, uracil, is also a pyrimidine base but is found in RNA instead of DNA. Option D, cytosine, is another pyrimidine base found in both DNA and RNA. Therefore, option A, adenine, is the only incorrect answer as it does not fit the criteria of being a pyrimidine base found in nucleic acids.

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