Final answer:
Transcription is the process that converts DNA into messenger RNA (mRNA), acting as an intermediary to carry genetic instructions from the nucleus to the ribosomes for protein synthesis, adhering to the Central Dogma of Molecular Biology.
Step-by-step explanation:
The process responsible for the conversion of DNA information into messenger RNA (mRNA) is called transcription. During transcription, enzymes called RNA polymerases construct an mRNA strand that is complementary to the DNA template. This mRNA then serves as the intermediary that carries genetic information from the DNA in the nucleus to the site of protein synthesis in the cytoplasm. Ribosomes read the genetic code inscribed on the mRNA and use this information to assemble amino acids into a protein, a process known as translation. This two-step process from DNA to RNA to protein is the core of the Central Dogma of Molecular Biology, which describes the flow of genetic information within a biological system.