What is a promoter - Study guides, Class notes & Summaries

Core Promoter Elements ~~> TATA box = repetitive sequence of thymine and adenine Initiator (INR) = sequence of pyramidines like thymine and cytosine DPE = downstream promoter elements found along the DNA Common to have >1 promoter but not all of them CpG islands ~~> Sequences high in CG frequency. They are able to escape methylation which would lead to gene silencing. Demethylation would lead to over expression of genes. Regulatory Promoter Elements ~~> UAS and URS f...

Bi 112 Ch 15 Questions (2nd Batch) Questions and Answers Already Passed What is the role of DNA polymerase in DNA replication? DNA polymerase adds nucleotides to the growing DNA strand and proofreads for errors during replication. How does the structure of DNA contribute to its function? The double helix structure of DNA allows for easy replication and storage of genetic information in a stable form. What is a mutation, and how can it affect an organism? A mutation is a change i...

Based on the data presented in the passage, which statement best describes the HSP110ΔE9 allele? A.Cancer-promoting and dominant to HSP110WT B.Cancer-promoting and recessive to HSP110WT C.Cancer-suppressing and dominant to HSP110WT D.Cancer-suppressing and recessive to HSP110WT - Cross out A and B. LOOK AT THE FIGURE! Tumor volume is DOWN. Table 2 shows that HSP110ΔE9 allele when mixed with HSP110WT there is more apoptotic cells. So it's dominant. SLOW THE HECK DOWN AND READ ...

Exam 3: BIO1201/ BIO 1201 (Latest 2024/ 2025 Update) | Questions and Verified Answers| 100% Correct| Grade A – LSU Q: How are genes coordinately controlled in eukaryotic cells? Coordinately controlled genes in eukaryotic cells share a set of control elements. Coordinately controlled genes in eukaryotic cells are activated by the same chemical signals. Coordinately controlled genes in eukaryotic cells are located together on the same chromosome. Answer: Coordinately controlled...

negative regulation for the lac operon when ~ see a repressor positive regulation in lac operon when ~ camp cap what are camp cap and where to they bind? activator/repressor? trans/cis? pos/neg regulation? ~ operon, initiate transcription in absence of glucose. they are an activator. trans. and positive regulation restriction sites in normal genes ~ don't have them naturally, added through primers via PCR Predict what would happen if you swapped the location of the promoter and th...

What is gene expression? ~~> dsDNA is decoded to ssRNA/proteins by an mRNA intermediate using A/U/C/GTPs and RNA polymerase Where is the consensus sequence in prokaryotic promoters? ~~> at -10 and -35 upstream of the the transcription start site What recognises the consensus sequences in prokaryotes? ~~> the holoenzyme What is a holoenzyme? ~~> a closed complex with a core enzyme and sigma factor 70 What does the holoenzyme do? ~~> causes the dsDNA to open and allo...

c. Transcription correct answersWhat is the process called that converts the genetic information stored in DNA to an RNA copy? a. Translocation b. Translation c. Transcription d. Replication a. A site in DNA that recruits the RNA Polymerase correct answersTranscription begins at a promoter. What is a promoter? a. A site in DNA that recruits the RNA Polymerase b. Part of the RNA molecule itself c. A site found on the RNA polymerase d. The same as a start codon a. Complementar...

Bio 115 Final Exam- WVU Questions and Answers Already Passed How can one eukaryotic gene lead to one transcript, but multiple different proteins? Alternative splicing What is the primary transcript of eukaryotic genes? mRNA What is the attachment site for RNA polymerase? Promoter region Gene regulation in both prokaryotes and eukaryotes is achieved by controlling which process? transcription A eukaryotic gene has all of the following except: introns, a promoter, an operator, ...

USABO PRACTICE EXAM 2024 WITH 100% CORRECT ANSWERS What enzyme does HIV use to convert RNA to DNA? - correct answer Reverse Transcriptase The promoter region of a prokaryotic gene is located ______ to the gene and is the binding site for ______. - correct answer 5'...RNA polymerase Which of the following is TRUE of prokaryotes? I. Simultaneous transcription and translation II. Presence of intron sequences III. Circular DNA - correct answer I and III only Integral transmembra...

USABO Practice Questions with Verified Solutions What enzyme does HIV use to convert RNA to DNA? Reverse Transcriptase The promoter region of a prokaryotic gene is located ______ to the gene and is the binding site for ______. 5'...RNA polymerase Which of the following is TRUE of prokaryotes? I. Simultaneous transcription and translation II. Presence of intron sequences III. Circular DNA I and III only Integral transmembrane proteins are proteins imbedded in the cell membrane...