Concept
Transcription
Process that copies a gene from DNA into a messenger RNA molecule.
It is the process by which a DNA strand serves as a template to synthesize a complementary RNA molecule, catalyzed by RNA polymerase. In bacteria such as Escherichia coli it comprises the stages of initiation, elongation, and termination, and the enzyme does not require a primer to begin.
It is the second of the three fundamental processes of the central dogma: it converts the genetic information stored in DNA into a temporary message that the ribosomes can read. Its regulation allows the cell to switch genes on or off according to its metabolic and environmental needs.
The video presents it as the second of the three processes of the central dogma, in which a single strand of messenger RNA is obtained. It explains that RNA polymerase begins assembling the first ribonucleotides without needing a primer, and that termination occurs through either a rho-independent or a rho-dependent mechanism.
Relations
- Central dogma → relies on → Transcription
Evidence
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma3:49
El dogma central se basa en tres procesos críticos o fundamentales celulares.
- The Rule Behind All Life | The Central Dogma3:49
- Transcription → reads → DNA
Evidence
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma9:51
A lo largo de este recorrido, la enzima lee la hebra molde en dirección 3′ a 5′
- The Rule Behind All Life | The Central Dogma9:51
- Transcription → produces → Messenger RNA
Evidence
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma11:12
Como resultado, se genera una molécula de ARN mensajero monocatenario, complementaria a la hebra molde y lista para ser traducida.
- The Rule Behind All Life | The Central Dogma11:12
- Escherichia coli → carries out → Transcription
Evidence
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma4:49
las animaciones que vamos a ver de replicación, transcripción y traducción son específicas de procariotas, en específico de Escherichia coli.
- The Rule Behind All Life | The Central Dogma4:49
- The Rule Behind All Life | The Central Dogma → mentions → Transcription
Evidence
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma4:04
El segundo es el paso de la transcripción. Ahí se obtiene un solo RNA mensajero, es una sola cadena.
- The Rule Behind All Life | The Central Dogma9:35
la ARN polimerasa comienza a ensamblar los primeros ribonucleótidos sin necesidad de un cebador.
- The Rule Behind All Life | The Central Dogma4:04
Sources · original ES transcript
- The Rule Behind All Life | The Central Dogma4:04
El segundo es el paso de la transcripción. Ahí se obtiene un solo RNA mensajero, es una sola cadena.
- The Rule Behind All Life | The Central Dogma9:35
la ARN polimerasa comienza a ensamblar los primeros ribonucleótidos sin necesidad de un cebador.