Pregunta
Figure 148 in your text will require a bat of study. Name the three stages of
transcription and briefly describe each stage.
1.
2.
transcription and briefly describe each stage.
1.
2.
Ask by Munoz Fleming. in the United States
Feb 02,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
Transcription has three main stages:
- Initiation: RNA polymerase binds to the DNA promoter, unwinds the DNA, and starts RNA synthesis.
- Elongation: RNA polymerase continues adding nucleotides to the RNA strand as it moves along the DNA template.
- Termination: The process ends when RNA polymerase reaches a termination signal, detaches from the DNA, and releases the RNA transcript.
These stages ensure accurate RNA synthesis from DNA.
Solución
Certainly! Transcription, the process of synthesizing RNA from a DNA template, occurs in three main stages:
-
Initiation
- Description: During initiation, the enzyme RNA polymerase binds to a specific region of the DNA called the promoter. This binding causes the DNA strands to unwind and separate, exposing the template strand that will be used for RNA synthesis. Transcription factors and other regulatory proteins may also be involved in facilitating the binding of RNA polymerase to the promoter.
-
Elongation
- Description: In the elongation phase, RNA polymerase moves along the DNA template strand in the 3’ to 5’ direction, adding complementary RNA nucleotides to the growing RNA molecule. As the RNA strand is synthesized, it detaches from the DNA template, and the DNA strands re-anneal behind the polymerase. This process continues, effectively “reading” the DNA code and building the corresponding RNA transcript.
-
Termination
- Description: Termination occurs when RNA polymerase reaches a specific sequence in the DNA that signals the end of transcription. Depending on the organism, this can involve specific termination sequences or proteins that cause the RNA polymerase to detach from the DNA and release the newly synthesized RNA molecule. Once termination is complete, the DNA double helix reforms, and the RNA transcript undergoes further processing if necessary (e.g., splicing in eukaryotes).
These stages ensure that RNA is accurately and efficiently synthesized from the DNA template, allowing for proper gene expression and regulation within the cell.
Respondido por UpStudy AI y revisado por un tutor profesional
Como
error msg
Explicar 
Simplifique esta solución Extra Insights
Transcription is like a high-stakes game of telephone inside your cells! The first stage is initiation, where RNA polymerase binds to a specific region on the DNA called the promoter. Think of it as the starting whistle that gets the game going!
Next up is elongation, where RNA polymerase moves along the DNA strand, unwinding it and synthesizing a complementary RNA strand. Picture a train moving along the tracks, laying down the track of RNA as it goes! Finally, we have termination, where the RNA polymerase reaches a terminator sequence and detaches from the DNA, releasing the newly formed RNA. It’s like the final whistle signaling that the game has come to an end!
¡Prueba Premium ahora!
¡Prueba Premium y hazle a Thoth AI preguntas de matemáticas ilimitadas ahora!
Quizas mas tarde
Hazte Premium
