The segments of DNA where transcription begins having a binding site for RNA polymerase are known as promoters.
The segments of DNA where transcription begins have a binding site for RNA polymerase. These segments...
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...
Which of the following is NOT a difference between DNA and RNA synthesis? a. the nature of the nucleotide used b. the direction of synthesis c. the presence of discrete termination signals d. the simultaneous coding from both strands of DNA. During transcription, separation of the DNA strands is necessary. This involves: a. During transcription, separation of the DNA strands is necessary. This involves: b. separation of long segments of the DNA corresponding to genes. c. separation in only a...
Transcription regulators control transcription by phosphorylating RNA polymerase. binding to specific sequences of DNA. binding to specific sequences of RNA. degrading mRNAs.
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
Describe the structure and function of elements needed for transcription, including the promoter, RNA polymerase core enzyme and holoenzyme, sigma factor, and template and non-template (coding) strands of DNA. eukaryotes - . List major differences between transcription and RNA processing in bacteria and o What is coupled transcription/translation? o What is a polyribosome? Is it exclusive of bacterz - Discuss major components and events in RNA processing, in - Describe tRNA stru - Discuss mech cluding, introns and exons, splicing....
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....
Why does E. coli have several different sigma factors? A.They allow RNA polymerase I, RNA polymerase II and RNA polymerase III to bind to different promoters. B.They allow the different subunits of the RNA polymerase holoenzyme to bind to each other. C.They are redundant in case one is mutated. They all perform the same function. D.One is needed to transcribe mRNA. A second is needed to transcribe tRNA. And a third is needed to transcribe rRNA. E.They are used if...
The process of DNA transcription: produces single stranded RNA complementary to the coding strand. requires RNA polymerase. is discontinuous. produces double stranded DNA. requires DNA polymerase III. Among the significant sites that many eukaryotic promoters contain is: a TATAAT box near –10. a TATA site near –30 to –100. a CATA site at the transcription start site. a Pribnow box. the Shine-Dalgarno sequence.
The operator of thr operon is the binding site for? RNA polymerase DNA plymerase reprocessor proteins DNA isomerase