Question

Information flow or central dogma of modern biology is

• A. RNA—DNA—Proteins
• B. RNA—Proteins—DNA
• C. DNA—RNA—Proteins
• D. DNA—Proteins—RNA

Answer 1

The correct option is C DNA—RNA—Proteins

Central dogma
The central dogma states that genetic information flows in a single direction. According to the central dogma of life -
● DNA is the master copy of genetic information and undergoes replication to form new copies of DNA.
● The genetic code or information in the DNA is transferred into an RNA by synthesising an mRNA from the 3’-5’ template strand of DNA by transcription.
● The information carried by the RNA is expressed in the form of polypeptide chains or proteins by the process of translation.

Thus the correct sequence of flow of genetic information is -
DNA—RNA—Proteins



Final answer:
(d) DNA—RNA—Proteins