Termination of transcription in both E. coli and eukaryotic cells occurs because a.) there is a...
Termination of transcription in both E. coli and eukaryotic cells occurs because
| a.) |
there is a termination signal in the DNA following the gene sequence. |
| b.) |
there is a hairpin structure followed by a string of U |
Homework Answers
Option E. Both A and B.
The hairpin loop structure is followed by a string of U residues. This is seen in E.coli.
The termination signal after the gene is present in eukaryotes. This helps the Polymerase to identify the sequence.
|
E. a and b a) |
there is a termination signal in the DNA following the gene sequence. |
| b.) |
there is a hairpin structure followed by a string of U |
e. A and B
| a) |
there is a termination signal in the DNA following the gene sequence. |
| b.) |
there is a hairpin structure followed by a string of U |
Add Answer to:
Termination of transcription in both E.
coli and eukaryotic cells occurs because
a.)
there is a...
Termination of transcription in both E. coli and eukaryotic cells occurs because a.) there is a...
Termination of transcription in both E. coli and eukaryotic cells occurs because a.) there is a termination signal in the DNA following the gene sequence. b.) there is a hairpin structure followed by a string of U
Which of the following occurs ONLY in eukaryotic cells and NOT in prokaryotic cells? RNA polymerase...
Which of the following occurs ONLY in eukaryotic cells and NOT in prokaryotic cells? RNA polymerase binds to the DNA template at the promotor sequence of the gene RNA polymerase is capable both of unwinding and separating the DNA helix - hence displaying part of the DNA template for transcription - and of catalyzing the formation of phosphodiester bonds. RNA polymerase pairs up Uracil (U) in the elongating RNA strand with Adenine (A) in the DNA template RNA polymerase pairs...
Which structure causes transcription to cease in E. coli? O na external electron acceptors in environment...
Which structure causes transcription to cease in E. coli? O na external electron acceptors in environment 2. theta structure O mRNA hairpin followed by a poly-U sequence 4. stop codon
In eukaryotic transcription termination the ____ signal causes the polymerase to fall off of the DNA...
In eukaryotic transcription termination the ____ signal causes the polymerase to fall off of the DNA and transcription ends
Give the method of transcription termination that BEST matches the experimental observation below: You detect a...
Give the method of transcription termination that BEST matches the experimental observation below: You detect a hairpin loop sequence of DNA at the end of the gene. You discover that the addition of RNase inhibitor significantly reduces the rate of transcription termination of the gene.
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription...
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription level (prior to or during transcription), at the translation level(after transcription/formation of the immature mRNA molecule), or both. 1. Addition of the signal-recognition particle (SRP) 2. DNA methylation 3. Enhancers or insulators
Trp Operon 5. The rate of transcription of the trp operon in E. coli is controlled by both repression and attenuation dr papde ia) Alternate secondary structures formed by the trpl tranecript Alterna...
Trp Operon 5. The rate of transcription of the trp operon in E. coli is controlled by both repression and attenuation dr papde ia) Alternate secondary structures formed by the trpl tranecript Alternate 2 Regions 2 and 3 Atemate 1: Regions 1 and 2 basepared and regions 3 and 4 basepsired 54 140 Stop codon Transcribtion termination hairpin can NOT form a) Diagram and explain repression and attenuation regulatory mechanisms for the trp operon when tryptophan is present and absent....
Transcription is terminated, when a characteristic RNA structure _____ is formed by local RNA palindromic sequences...
Transcription is terminated, when a characteristic RNA structure _____ is formed by local RNA palindromic sequences at the 3’- end. The structure interacts with RNAP-bound NusA, causing dissociation of RNAP from template DNA. The RNAP dissociation is stimulated by sequence-specific binding of _____ proteins to the transcribed RNA, enhancing termination of transcription. Select one: a. hairpin ;;;; rho b. hairpin ;;;; sigma c. beta-turn ;;;; rho d. beta-turn ;;;; sigma e. None of these
Bacterial cells, such as E. coli, are surrounded by a fluid plasma membrane and enclosed by...
Bacterial cells, such as E. coli, are surrounded by a fluid plasma membrane and enclosed by a rigid cell wall that protects the cell from damage. You will recall that there is no nuclear envelope in prokaryotic cells, but rather a “nucleoid region” with a single chromosome that is continuous (circular), not linear, as in eukaryotes. All of the genes required for basic survival and reproduction are found in the main chromosome. In addition to the main chromosomes, some DNA...
34. Transcription is terminated, when a characteristic RNA structure is formed by local RNA palindromic sequences...
34. Transcription is terminated, when a characteristic RNA structure is formed by local RNA palindromic sequences at the 3-end. The structure interacts with RNAP-bound NusA, causing dissociation of RNAP from template DNA. The RNAP dissociation is stimulated by sequence specific binding of proteins to the transcribed RNA, enhancing termination of transcription Select one a. hairpin - rho b. hairpin sigma c. beta-turn rho d. beta-turn sigma e. None of these
Which structure causes transcription to cease in E. coli? O na external electron acceptors in environment 2. theta structure O mRNA hairpin followed by a poly-U sequence 4. stop codon
E: For each of the following, indicate whether they regulate eukaryotic gene expression at the transcription level (prior to or during transcription), at the translation level(after transcription/formation of the immature mRNA molecule), or both. 1. Addition of the signal-recognition particle (SRP) 2. DNA methylation 3. Enhancers or insulators
Trp Operon 5. The rate of transcription of the trp operon in E. coli is controlled by both repression and attenuation dr papde ia) Alternate secondary structures formed by the trpl tranecript Alternate 2 Regions 2 and 3 Atemate 1: Regions 1 and 2 basepared and regions 3 and 4 basepsired 54 140 Stop codon Transcribtion termination hairpin can NOT form a) Diagram and explain repression and attenuation regulatory mechanisms for the trp operon when tryptophan is present and absent....
Bacterial cells, such as E. coli, are surrounded by a fluid plasma membrane and enclosed by a rigid cell wall that protects the cell from damage. You will recall that there is no nuclear envelope in prokaryotic cells, but rather a “nucleoid region” with a single chromosome that is continuous (circular), not linear, as in eukaryotes. All of the genes required for basic survival and reproduction are found in the main chromosome. In addition to the main chromosomes, some DNA...
34. Transcription is terminated, when a characteristic RNA structure is formed by local RNA palindromic sequences at the 3-end. The structure interacts with RNAP-bound NusA, causing dissociation of RNAP from template DNA. The RNAP dissociation is stimulated by sequence specific binding of proteins to the transcribed RNA, enhancing termination of transcription Select one a. hairpin - rho b. hairpin sigma c. beta-turn rho d. beta-turn sigma e. None of these
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