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GK QUESTION#3696

Which of the following options shows the usual sequence of genetic information transfer in gene expression?

  1. ADNA → Protein → RNA
  2. BRNA → DNA → Protein
  3. CDNA → RNA → ProteinCorrect answer
  4. DProtein → RNA → DNA
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Answer

C. DNA → RNA → Protein

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Explanation

The usual gene-expression pathway is DNA to RNA by transcription and RNA to protein by translation. Reverse transcription can transfer information from RNA to DNA, but it does not mean that proteins are copied back into RNA or DNA.

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