Central dogma in molecular biology states that genetic information flows from:

DNA → mRNA → Protein

The correct answer is Option (2) → DNA → mRNA → Protein

The central dogma of molecular biology, proposed by Francis Crick, describes the flow of genetic information within a biological system. It states that the genetic information flows from:

1. DNA: The genetic information is stored in DNA.
2. mRNA (messenger RNA): DNA is transcribed into mRNA, which carries the genetic instructions to the ribosome.
3. Protein: mRNA is then translated into a protein, which performs various functions in the cell.

This flow of information is crucial for the synthesis of proteins, which are the workhorses of the cell, performing structural, enzymatic, and regulatory roles.

So the correct answer is :DNA → mRNA → Protein