Questions: According to the Central Dogma, which is the correct flow of genetic information? DNA → RNA → Protein Protein → RNA → DNA DNA → Protein → RNA RNA → DNA → Protein

According to the Central Dogma, which is the correct flow of genetic information?
DNA → RNA → Protein
Protein → RNA → DNA
DNA → Protein → RNA
RNA → DNA → Protein
Transcript text: According to the Central Dogma, which is the correct flow of genetic information? DNA $\rightarrow$ RNA $\rightarrow$ Protein Protein $\rightarrow$ RNA $\rightarrow$ DNA DNA $\rightarrow$ Protein $\rightarrow$ RNA RNA $\rightarrow$ DNA $\rightarrow$ Protein
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Solution

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The answer is the first one: DNA \rightarrow RNA \rightarrow Protein.

Explanation for each option:

  1. DNA \rightarrow RNA \rightarrow Protein: This is the correct flow of genetic information according to the Central Dogma of molecular biology. It describes the process where DNA is transcribed into RNA, which is then translated into protein.
  2. Protein \rightarrow RNA \rightarrow DNA: This is incorrect. Proteins do not serve as templates for RNA synthesis, nor do they reverse transcribe into DNA.
  3. DNA \rightarrow Protein \rightarrow RNA: This is incorrect. DNA is not directly translated into protein without the intermediate RNA step.
  4. RNA \rightarrow DNA \rightarrow Protein: This is incorrect in the context of the Central Dogma. While reverse transcription (RNA to DNA) does occur in some viruses, it is not the standard flow of genetic information in cells.

Summary: The correct flow of genetic information according to the Central Dogma is DNA \rightarrow RNA \rightarrow Protein.

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