Repressor Studienführer, Klassennotizen & Zusammenfassungen

ASU BIO 340 Exam 3 | WITH QUESTIONS AND ANSWERS 100% VERIFIED What will be the effect on transcription when an inhibitor is in play? A. Allow transcription B. Prevent transcription - B Explanation: An inhibitor prevents activator from binding to DNA; activators are used in positive regulation (increasing transcription) - thus, the inhibitor prevents the activator from positive regulating (increasing) transcription. What will be the effect on transcription when an inducer is in play? A. A...

TAMU bio 111 lab exam 2 review (2023/2024) already passed What is the difference between the coding and non-coding region? Coding region: comprised of genes that encode proteins (instructions that determine traits) and makes up 1-2% of human DNA. • Noncoding region: makes up 98-99% of human DNA, contains STRs and is responsible for regulatory functions such as gene transcription. What are STRs? Short-tandem repeats (STRs) are unique repeating patterns of the same nucleotide sequence. They can...

The tryptophan operon is a repressible operon that is: - ANSWER-Turned off whenever tryptophan is added to the growth medium. The lactose operon is likely to be transcribed when: - ANSWER-The cyclic AMP and lactose levels are both high within the cell. For a repressible operon to be transcribed, which of the following must occur? - ANSWER-RNA polymerase must bind to the promoter, and the repressor must be inactive. Which of the following, when taken up by the cell, binds to the represso...

WGU C785 Biochemistry Final Exam Latest 2022. Which of the following enzymes is part of both the TCA cycle and the electron transport chain? ATP synthase (Complex I) NADH oxidoreductatase Cytochrome c Succinate dehydrogenase (Complex II) – Succinate dehydrogenase ATP is used to carry energy within the cell. The majority of energy in ATP is stored within which of the following bonds indicated on the image below? 3 1 2 4 - 1 In the case of a deficiency in phenylalanine hydroxylase w...

Biology 1000 – Principles of Biology ( BioS 115 Core II: Genetics) Exam Study Guide Questions With Answers. Explain the concepts of penetrance and expressivity Penetrance is the percentage of cases in which a certain phenotype is expressed. There are two types: i. Complete Penetrance: when 100% is correlated to the genotype. So, all express the same thing. ii. Incomplete: this is when some are identical, and others are different. Penetrance= # with genotype showing phenotype x 100 # wit...

CBE 235 Final Question and answers rated A+ 2023/2024 Lac Operon - correct answer -involved in heating lactose: inducible operon 1) The lactose repressor protein coded by Lacl bound to the operator tightly near the mRNA start site, blocking the ability of RNA poly to bind 2) Lactose introduced--> Lac repressor binds to lactose and changes conformation such that it can no longer bond to the operator 3) RNA poly can access the promoter and transcription goes 4) LacZ,LacY,LacA are transcribe...

SFSU Biology 230 Final Exam with complete solutions What are the two components of the proton-motive force? a. pH gradient and equilibrium b. pH gradient and voltage c. voltage and ATP d. voltage and lipid-soluble agents - ️️ b. pH gradient and voltage Which molecule is responsible for unwinding DNA supercoils before replication in E. coli? a. DNA helicase b. DNA ligase c. DNA polymerase III d. Gyrase e. Topoisomerase I/II - ️️ a. DNA helicase What is the likely cause of an ...

BIO 214 EXAM 3 Practice EXAM 57 Questions with Verified Answers In the lac operon, CAP binding to the CAP site of the promoter ____. a. occurs when glucose is present b. inhibits RNA polymerase from binding to the promoter c. occurs when cAMP is absent d. helps the repressor protein bind to the operator e. enables RNA polymerase to transcribe the operon's genes - CORRECT ANSWER enables RNA polymerase to transcribe the operon's genes Gene regulation in both prokaryotes and eukaryotes...

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...

You discover a new bacterial operon that is induced by the presence of lead. You find a mutation that results in a mutation in the operator that changes the binding sequence so that the repressor is always bound to it. Would this mutation be rescued by a plasmid with a wild type copy of the operon and why? correct answers Yes, because the repressor would still be able to bind to the operator in the plasmid allowing for normal expression from the plasmid Why is it difficult to find a treatment...