Transcription is a fundamental biological process in which genetic information encoded in DNA is copied into a complementary strand of RNA. This process serves as the initial step in the expression of genes, allowing the blueprint of hereditary information to be transferred from the stable DNA molecule to a more versatile messenger RNA (mRNA) transcript. The mechanism involves specialized enzymes, most notably RNA polymerase, which reads the template strand of DNA and synthesizes the RNA molecule, thereby carrying instructions for synthesizing proteins. The newly formed RNA molecule can then travel to ribosomes, where the genetic code is translated into an amino acid sequence, enabling the construction of functional polypeptides necessary for cellular life.