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

What does it mean to say that regulatory sequences are in cis? Correct Answer-they are one the same chromosome as the genes that they control Describe the distance between transcription regulator binding sites and the TATA box. Correct Answer-the transcriptional regulator binding sites are often really far away from the start of genes (10's of thousands of bp's long) If you see the TATA box on a strand of DNA, you know that this is the ________ of a gene. Correct Answer-promoter How w...

Briefly explain how the base pairs A-T and C-G bond to each other and why the interactions they form are important to DNA unwinding. Base pairs form hydrogen bonds to each other. G and C form 3 hydrogen bonds, while A and T form 2 hydrogen bonds. These hydrogen bonds are weak electrostatic interactions that are able to hold the DNA together but are easily broken for the DNA to unwind. Why are telomerase inhibitors an attractive prospect for cancer therapies? >90% of cancer cells expres...

Ultimate AP Biology Exam Review Questions with Verified Answers Compare and contrast transpiration and translocation. What is the difference between xylem and phloem? Tranpspiration is the loss of water vapor from the surgace of a plant through the stomata. Translocation is the channeling of the sugar through the phloem. Define hypoosmotic, hyperosmotic, and isomotic 1. Has a lower concentration of solutes than its surrounding enviorment 2. Has a higher concentration of solutes than i...

TEST BANK Stanhope and Lancaster's Community Health Nursing in Canada Sandra A. MacDonald, and Sonya L. Jakubec 4th Edition extra per year? Table of Contents Chapter 01 Community Health Nursing 1 Chapter 02 The Evolution of Community Health Nursing in Canada 8 Chapter 03 Community Health Nursing in Canada-Settings, Functions, and Roles 13 Chapter 04 Health Promotion 24 Chapter 05 Evidence-Informed Practice in Community Health Nursing 30 Chapter 06 Ethics in Community Health Nursing...

Eukaryotic promoters have a basal region which can contain a TATA box, initiator (Lnr), BRE (TFIIV recognition element) and what other element? ~~> Downstream core promoter (DPE) In prokaryotes RNA polymerase requires what co-factor? ~~> 70 sigma factor Forms the holoenzyme The promoter is formed of two hexameric sequences at what positions? ~~> -35 and -10 The amount of product transcribed is dependant on how close the promoter sequences are to what? ~~> Consensus s...

USABO Practice Questions and Answers 100% CorrectUSABO Practice Questions and Answers 100% CorrectUSABO Practice Questions and Answers 100% CorrectUSABO Practice Questions and Answers 100% CorrectUSABO Practice Questions and Answers 100% Correct What enzyme does HIV use to convert RNA to DNA? - ANSWER - Reverse Transcriptase The promoter region of a prokaryotic gene is located ______ to the gene and is the binding site for ______. - ANSWER - 5'...RNA polymerase Which of the following is ...

Chp 21: What is the region immediately adjacent to the starting site for RNA polymerization called? A) promoter B) enhancer C) initiator D) consensus sequence E) TF binding site A) promoter Chp 21: Which of the eukaryotic transcription factors is responsible for binding the TATA box? A) TFIIB B) TFIID C) TFIIE D) TFIIF E) TFIIH B) TFIID Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:01 / 0:15 Full screen Brainpower Read More Chp 21...

Test Bank for Huether and McCance's Understanding Pathophysiology, Canadian Edition, 2nd Edition by Kelly Power, Stephanie Zettel, , Mohamed Toufic El-Hussein Table of Contents PART ONE: BASIC CONCEPTS OF PATHOPHYSIOLOGY Unit 1: The Cell 1. Cellular Biology 2. Genes and Genetic Diseases 3. Epigenetics and Disease 4. Altered Cellular and Tissue Biology 5. Fluids and Electrolytes, Acids and Bases Unit 2: Mechanisms of Self-Defense 6. Innate Immunity: Inflammation and Wound Healing ...

Test Bank for Neuroscience, Sixth Edition Purves • Augustine • Fitzpatrick • Hall • LaMantia • Mooney • Platt • White Chapter 1: Studying the Nervous System Multiple Choice 1. Which part of DNA is transcribed into messenger RNA? a. Exon b. Intron c. Promoter d. Non-coding DNA e. Regulatory DNA Answer: a Textbook Reference: Genetics and Genomics Bloom’s Level: 2. Understanding 2. Genomics is the analysis of a. coding DNA sequences for a species. b. regulato...

Bio 114 Exam 4 (UA) Questions and Answers Already Passed What is referred to as the "switch" in a DNA segment? The "switch" is known as the operator, a DNA segment typically located within the promoter region. What role does a repressor play in gene regulation? A repressor is a protein that attaches to an operator and obstructs RNA polymerase from attaching to the promoter. What is a corepressor? A corepressor is a molecule that works in conjunction with a repressor protein ...