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Which of the following is a purine? (2019)

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Question: Which of the following is a purine? (2019)

Options:

  1. Cytosine
  2. Thymine
  3. Adenine
  4. Uracil

Correct Answer: Adenine

Exam Year: 2019

Solution: 

Adenine is a purine, which is one of the two types of nitrogenous bases in nucleic acids.

Which of the following is a purine? (2019)

Practice Questions

Q1
Which of the following is a purine? (2019)
  1. Cytosine
  2. Thymine
  3. Adenine
  4. Uracil

Questions & Step-by-Step Solutions

Which of the following is a purine? (2019)
  • Step 1: Understand what a purine is. Purines are a type of nitrogenous base found in DNA and RNA.
  • Step 2: Know the two main types of nitrogenous bases: purines and pyrimidines.
  • Step 3: Identify the purines. The two purines are adenine (A) and guanine (G).
  • Step 4: Look at the options given in the question to see if adenine or guanine is listed.
  • Step 5: If adenine is one of the options, then it is the correct answer as a purine.
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