What is the correct sequence of information flow in the central dogma?

What is the correct sequence of information flow in the central dogma?

• A. RNA -> DNA -> Protein
• B. DNA -> Protein -> RNA
• C. DNA -> RNA -> Protein
• D. Protein -> RNA -> DNA

Answer: (C)

The main idea is that genetic information is stored in DNA and is expressed through an RNA intermediate and then into a protein. The gene’s DNA sequence is first transcribed into messenger RNA, which serves as a readable copy of the instructions. This RNA then travels to the ribosome, where translation uses its sequence to assemble amino acids into a protein. This two-step flow—DNA to RNA to protein—explains how genes ultimately determine the structure and function of the cell. There are organizational details, like transcription in the nucleus and translation in the cytoplasm in eukaryotes, and some RNAs aren’t translated at all, but the essential order remains DNA → RNA → protein. Exceptions exist (such as reverse transcription in certain viruses), but the standard pathway described here is the typical flow.

The main idea is that genetic information is stored in DNA and is expressed through an RNA intermediate and then into a protein. The gene’s DNA sequence is first transcribed into messenger RNA, which serves as a readable copy of the instructions. This RNA then travels to the ribosome, where translation uses its sequence to assemble amino acids into a protein. This two-step flow—DNA to RNA to protein—explains how genes ultimately determine the structure and function of the cell. There are organizational details, like transcription in the nucleus and translation in the cytoplasm in eukaryotes, and some RNAs aren’t translated at all, but the essential order remains DNA → RNA → protein. Exceptions exist (such as reverse transcription in certain viruses), but the standard pathway described here is the typical flow.