According to the central dogma of molecular biology, what is the correct order of information flow?
Difficulty: Medium
About this MCQ
Medium MCAT item. Correct choice: A. DNA to RNA to Protein.
- A. DNA to RNA to Protein ✓
- B. RNA to DNA to Protein
Why not B: “RNA to DNA to Protein” is not DNA to RNA to Protein.
- C. Protein to RNA to DNA
Why not C: “Protein to RNA to DNA” is not DNA to RNA to Protein.
- D. DNA to Protein to RNA
Why not D: “DNA to Protein to RNA” is not DNA to RNA to Protein.
Correct answer
A. DNA to RNA to Protein
Explanation
DNA to RNA to Protein (option A) is the accepted answer to “According to the central dogma of molecular biology, what is the correct order of information flow”. Option B (RNA to DNA to Protein) is a different value from DNA to RNA to Protein. Option C (Protein to RNA to DNA) is a different value from DNA to RNA to Protein. Option D (DNA to Protein to RNA) is a different value from DNA to RNA to Protein. Keep DNA to RNA to Protein as the MCAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: American Exams, MCAT, Molecular Biology
Submitted by: MCQsHub Editorial
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