Which of the following is NOT a pyrimidine nitrogenous base? A) Adenine B) Thymine C) Cytosine D) Uracil

Understand the Problem

The question is asking us to identify which option does not belong to the group of pyrimidine nitrogenous bases. To solve it, we need to know the classifications of nitrogenous bases as either pyrimidines or purines.

Answer

Adenine

The nitrogenous base that is NOT a pyrimidine is Adenine.

Answer for screen readers

The nitrogenous base that is NOT a pyrimidine is Adenine.

More Information

Adenine is a purine nitrogenous base, while thymine, cytosine, and uracil are pyrimidine bases. Pyrimidines have a single carbon-nitrogen ring, whereas purines have a double ring.

Tips

A common mistake is to confuse purine and pyrimidine bases since they all appear in DNA and RNA contexts. Remember purines (adenine and guanine) have two rings; pyrimidines (cytosine, thymine, uracil) have one.

AI-generated content may contain errors. Please verify critical information

Thank you for voting!
Use Quizgecko on...
Browser
Browser