How is it possible for the repressor to enhance binding of RNA polymerase to the promoter...
How is it possible for the repressor to enhance binding of RNA polymerase to the promoter while at the same time repressing transcription?
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How is it possible for the repressor to enhance binding of RNA
polymerase to the promoter...
How does the Trp repressor prevents RNA polymerase from initiating transcription? by blocking the ribosome binding...
How does the Trp repressor prevents RNA polymerase from initiating transcription? by blocking the ribosome binding site by forming a loop in the operator that restricts the passage of the polymerase by binding to the polymerase to inhibit its catalytic activity by physically blocking the DNA binding site of RNA polymerase
There are several possible mutations in the trp operon: trpP -is a mutation in the promoter...
There are several possible mutations in the trp operon:
trpP -is a mutation in the promoter sequence
that prevents RNA polymerase from binding to the promoter and
initiate transcription of the trp operon genes.
trpOcis a mutation in the operator sequence
that prevents the trp repressor protein from binding to
the operator to block transcription of the trp operon
genes.
trpR-is a mutation in the repressor protein
that either prevents repressor protein from being made or produces
a mutant repressor...
a) For the lac operon, will the repressor or RNA polymerase be bound to the operon in this situation? Draw what wil...
a) For the lac operon, will the repressor or RNA polymerase be bound to the operon in this situation? Draw what will be happening on the operon below. PROMOTER OPERATOR Lactose Enzyme 1 Lsctose Enzyme2 Lactose Enzyme 3 NO b) Will transcription occur? c) Describe what is happening (with vocabulary words). YES 2. Bobby Joe is fasting today, how will the E. coli in her stomach respond to the lack of Tryptophan? a) For the trp operon, will the repressor...
Transcription regulators control transcription by phosphorylating RNA polymerase. binding to specific sequences of DNA. binding to...
Transcription regulators control transcription by phosphorylating RNA polymerase. binding to specific sequences of DNA. binding to specific sequences of RNA. degrading mRNAs.
Answer the questions: Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter ....
Answer the questions:
Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter . Facilitatord. Terminator Question 12 .A specific factor helps RNA polymerase binding to promoters and transcribe genes a Delta b. Beta Gamma d. Sigma Question 13 ............ Promoters lack a TATA box are referred to as TATA less promoters, for example operon Housekeeping genes b. Functional genesc d. Structural genes Question 14 0.5 points Save Answer During "RNA processing" All of the exons are a....
4. The antibiotic cordycenin syntheon 3. The RNA polymerase from bacteriophage T7 recognizes specific promoter sequence...
4. The antibiotic cordycenin syntheon 3. The RNA polymerase from bacteriophage T7 recognizes specific promoter sequence and melts open the DNA to form a transcription bubble. No other transcription factors are necessary for T7 RNA polymerase to initiate transcription. Dissociation constants (Ka) were measured for the interaction between the polymerase and DNA segments containing the promoter sequence. In some cases, the DNA contained a bulge, caused by a mismatch of one, four, or eight bases, to mimic the intermediates in...
One Question Below: 3. The RNA polymerase from bacteriophage T7 recognizes specific promoter sequence and melts...
One Question Below:
3. The RNA polymerase from bacteriophage T7 recognizes specific promoter sequence and melts open the DNA to form a transcription bubble. No other transcription factors are necessary for T7 RNA polymerase to initiate transcription. Dissociation constants (Ka) were measured for the interaction between the polymerase and DNA segments containing the promoter sequence. In some cases, the DNA contained a bulge, caused by a mismatch of one, four, or eight bases, to mimic the intermediates in the formation...
Choose all that apply to the initiation of transcription Promoter segments Ribosome tRNA DNA polymerase Transcription...
Choose all that apply to the initiation of transcription Promoter segments Ribosome tRNA DNA polymerase Transcription factors Question 25 (4 points) Saved Choose all the molecules that are used in transcription: a) primase b) DNA c) nucleotides d) RNA polymerase e) SSB (single strand binding protein)
What are the four common core promoter elements for eukaryotic genes transcribed by RNA polymerase II?...
What are the four common core promoter elements for eukaryotic genes transcribed by RNA polymerase II? Must all of these elements be present in the promoter for transcription of every gene to occur? Explain
RNA polymerase releases the DNA template. Initiation Elongation Termination A process called clearance or escape. The...
RNA polymerase releases the DNA template. Initiation Elongation Termination A process called clearance or escape. The RNA polymerase holoenzyme binds to the promoter A process called clearance or escape. Reaching a terminator sequence causos formation of phosphodiester bonds to stop. The RNA polymerase holoenzyme is formed. Once bound to the promoter, RNA polymerase begins to unwind the DNA. New nucleotides are added to the 3' end of the growing RNA transcript. The RNA-DNA hybrid within the transcription bubble dissociates New...
There are several possible mutations in the trp operon:
trpP -is a mutation in the promoter sequence
that prevents RNA polymerase from binding to the promoter and
initiate transcription of the trp operon genes.
trpOcis a mutation in the operator sequence
that prevents the trp repressor protein from binding to
the operator to block transcription of the trp operon
genes.
trpR-is a mutation in the repressor protein
that either prevents repressor protein from being made or produces
a mutant repressor...
a) For the lac operon, will the repressor or RNA polymerase be bound to the operon in this situation? Draw what will be happening on the operon below. PROMOTER OPERATOR Lactose Enzyme 1 Lsctose Enzyme2 Lactose Enzyme 3 NO b) Will transcription occur? c) Describe what is happening (with vocabulary words). YES 2. Bobby Joe is fasting today, how will the E. coli in her stomach respond to the lack of Tryptophan? a) For the trp operon, will the repressor...
Answer the questions:
Question 11 Recognition/binding site of RNA polymerase is called a Receptorb. Promoter . Facilitatord. Terminator Question 12 .A specific factor helps RNA polymerase binding to promoters and transcribe genes a Delta b. Beta Gamma d. Sigma Question 13 ............ Promoters lack a TATA box are referred to as TATA less promoters, for example operon Housekeeping genes b. Functional genesc d. Structural genes Question 14 0.5 points Save Answer During "RNA processing" All of the exons are a....
4. The antibiotic cordycenin syntheon 3. The RNA polymerase from bacteriophage T7 recognizes specific promoter sequence and melts open the DNA to form a transcription bubble. No other transcription factors are necessary for T7 RNA polymerase to initiate transcription. Dissociation constants (Ka) were measured for the interaction between the polymerase and DNA segments containing the promoter sequence. In some cases, the DNA contained a bulge, caused by a mismatch of one, four, or eight bases, to mimic the intermediates in...
One Question Below:
3. The RNA polymerase from bacteriophage T7 recognizes specific promoter sequence and melts open the DNA to form a transcription bubble. No other transcription factors are necessary for T7 RNA polymerase to initiate transcription. Dissociation constants (Ka) were measured for the interaction between the polymerase and DNA segments containing the promoter sequence. In some cases, the DNA contained a bulge, caused by a mismatch of one, four, or eight bases, to mimic the intermediates in the formation...
Choose all that apply to the initiation of transcription Promoter segments Ribosome tRNA DNA polymerase Transcription factors Question 25 (4 points) Saved Choose all the molecules that are used in transcription: a) primase b) DNA c) nucleotides d) RNA polymerase e) SSB (single strand binding protein)
RNA polymerase releases the DNA template. Initiation Elongation Termination A process called clearance or escape. The RNA polymerase holoenzyme binds to the promoter A process called clearance or escape. Reaching a terminator sequence causos formation of phosphodiester bonds to stop. The RNA polymerase holoenzyme is formed. Once bound to the promoter, RNA polymerase begins to unwind the DNA. New nucleotides are added to the 3' end of the growing RNA transcript. The RNA-DNA hybrid within the transcription bubble dissociates New...
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