5.9 Transcription

. Transcription Francis Crick proposed the Central dogma of protein synthesis in molecular biology states that genetic information flows as follows: The process of copying genetic information from one strand of DNA into RNA is termed transcription . This process takes place in presence of DNA dependent RNA polymerase. In some retroviruses that contain RNA as the genetic material (e.g, HIV), the flow XII Std Biology-Zoology Chapter- XII Std Biology-Zoology Chapter- Molecular Genetics to form the transcription bubble. The core enzyme moves ahead, manufacturing RNA leaving the sigma subunit behind at the promoter region. The end of a gene is marked by a terminator sequence that forms a hair pin structure in the RNA. The sub-class of terminators require a recognition protein, known as rho (ρ), to function.