Biology
In the prokaryotic model, the regulation of transcription is by the control of operons. However, in the eukaryotic model, it is via the control of transcription factors. In prokaryotes, transcription can occur simultaneously with translation as there is no compartmentalisation by a nucleus. In eukaryotes, after transcription, RNA processing has to occur before translation of the mRNA. Transcription is carried out by 1 type of RNA polymerase in prokaryotes, but it is carried out by 3 different RNA polymerase enzymes in eukaryotes. Enhancers are absent in prokaryotes as promote regions on the DNA are regulated by operators, but in the eukaryotic model, enhancers are present to regulate the initiation of transcription from a promoter.
- Q: Explain How Protein Synthesis Can Be Controlled At A Transcriptional Level In Prokaryotes
In prokaryotes, genes that encode enzymes of a metabolic pathway are usually clustered together on the chromosome in a region called an operon. A typical operon consists of regulatory sequences, like promoter, operator, terminator, and structural genes....
- Q: Compare And Contrast Dna Replication And Transcription
Similarities: Both processes occur in the nucleus. Both processes also involve specific complementary base pairing. Both processes involving the unwinding of the double helix DNA. Both processes involve forming of hydrogen bonds between the original DNA...
- Q: Compare And Contrast Transcription And Translation
Transcription occurs in the nucleus but translation occurs in the cytoplasm and rough endoplasmic reticulum. The two processes use different components and enzymes, transcription uses transcription factors and RNA polymerase whereas translation uses ribosomes...
- Eukaryote Transcription Vs. Prokaryote Transcription
Different Types of Transcription? Eukaryotes and Prokaryotes are different in so many ways but also the same. I explained a lot of the same and different ways in the "Eukaryotic and Prokaryotic Cells" post. One thing I did not describe was the transcription...
- Transcription In Eukaryotic Cells
Transcription in Eukaryotic Cells What is transcription? Transcription is the process that creates RNA inside a cell. It is used to develop proteins inside the cytoplasm of a cell although the actual transcription happens in the nucleus and mitochondria....
Biology
Q: Outline the differences between prokaryotic control of gene expression with the eukaryotic model
In the prokaryotic model, the regulation of transcription is by the control of operons. However, in the eukaryotic model, it is via the control of transcription factors. In prokaryotes, transcription can occur simultaneously with translation as there is no compartmentalisation by a nucleus. In eukaryotes, after transcription, RNA processing has to occur before translation of the mRNA. Transcription is carried out by 1 type of RNA polymerase in prokaryotes, but it is carried out by 3 different RNA polymerase enzymes in eukaryotes. Enhancers are absent in prokaryotes as promote regions on the DNA are regulated by operators, but in the eukaryotic model, enhancers are present to regulate the initiation of transcription from a promoter.
- Q: Explain How Protein Synthesis Can Be Controlled At A Transcriptional Level In Prokaryotes
In prokaryotes, genes that encode enzymes of a metabolic pathway are usually clustered together on the chromosome in a region called an operon. A typical operon consists of regulatory sequences, like promoter, operator, terminator, and structural genes....
- Q: Compare And Contrast Dna Replication And Transcription
Similarities: Both processes occur in the nucleus. Both processes also involve specific complementary base pairing. Both processes involving the unwinding of the double helix DNA. Both processes involve forming of hydrogen bonds between the original DNA...
- Q: Compare And Contrast Transcription And Translation
Transcription occurs in the nucleus but translation occurs in the cytoplasm and rough endoplasmic reticulum. The two processes use different components and enzymes, transcription uses transcription factors and RNA polymerase whereas translation uses ribosomes...
- Eukaryote Transcription Vs. Prokaryote Transcription
Different Types of Transcription? Eukaryotes and Prokaryotes are different in so many ways but also the same. I explained a lot of the same and different ways in the "Eukaryotic and Prokaryotic Cells" post. One thing I did not describe was the transcription...
- Transcription In Eukaryotic Cells
Transcription in Eukaryotic Cells What is transcription? Transcription is the process that creates RNA inside a cell. It is used to develop proteins inside the cytoplasm of a cell although the actual transcription happens in the nucleus and mitochondria....