Final answer:
The flow of genetic information goes from DNA to RNA to protein, following the processes of transcription and translation, according to the central dogma.
Step-by-step explanation:
The correct flow of genetic information during gene expression, according to the central dogma of molecular biology, is from DNA to RNA to Protein. This process begins with transcription, where the information encoded in a gene's DNA is transcribed to messenger RNA (mRNA). After transcription, the process of translation occurs, where the mRNA is used to specify the sequence of amino acids in the protein. The accurate flow of genetic information during gene expression, as dictated by the central dogma of molecular biology, follows the sequence from DNA to RNA to Protein. This sequential process initiates with transcription, during which the genetic information encoded in a gene's DNA is transcribed into messenger RNA (mRNA). In transcription, the DNA sequence is transcribed by RNA polymerase to produce a complementary mRNA molecule.
Following transcription, the next step is translation, a process occurring in the cellular machinery called ribosomes. In translation, the mRNA serves as the template to specify the sequence of amino acids in the protein. Transfer RNA (tRNA) molecules read the mRNA codons and bring the corresponding amino acids, enabling the ribosome to assemble a polypeptide chain.This unidirectional flow from DNA to RNA to Protein underscores the fundamental mechanism of gene expression, providing the foundation for the synthesis of functional proteins essential for cellular processes.