Transcription factors - Study guides, Class notes & Summaries

What is a hormone and how does it act? Hormones are chemical messengers that are responsible for regulation. They are secreted into body fluids, mainly blood. It has specific actions on target tissues, which are any tissue that has specific receptors for that particular hormone. What is a paracrine gland? a secretion that enters interstitial fluid but affects only neighboring cells What is an autocrine gland? A secretion that only affects the secreting cell. What is an en...

Test Bank Porth Pathophysiology Concepts of Altered Health States 2nd Canadian Edition Table of Contents Chapter 01: Concepts of Health and Disease ................................................................................................. 3 Chapter 02: Concepts of Altered Health in Children ................................................................................... 14 Chapter 03: Concepts of Altered Health in Older Adults .............................................................

NBME PHYSIOLOGY UPDATED EXAM WITH COMPLETE SOLUTIONS 2023/2024 Prostglandin - CORRECT ANSWER-From mast cells, macrophages, EC, and platelets Vasodilation, pain Rate controlling step in Insulin secretion - CORRECT ANSWER-Phosphorylation of glucose by glucokinase Glucokinase mutation - CORRECT ANSWER-Autosomal dominant form of early onset type 2 diabetes GLUT 2 - CORRECT ANSWER-low affinity high capacity glucose transporter. Uptake by beta cells Insulin release - CORRECT ANSWER-Bloo...

which of the following components of an amino acid differs from one amino acid to another - Answerthe R group Sometimes atoms gain or lose particles. The loss of which of the following would result in a change of overall electrical charge? - Answer-protons or electrons what is the cell theory - Answer-1. theof cells A pair of shared valence electrons is referred to as a(n) - Answer-covalent bond scientists wanted to track the movement of specific organic molecules in a cell by using radioac...

MCDB 101B PASSED Exam Questions and CORRECT Answers repressors - Correct ANSWER- Eukaryotic transcription factors that bind specific DNA sites near a gene, such as enhancers, and prevent the initiation of transcription of the gene are called repressors. - In eukaryotes, the primary function of repressors is different: Eukaryotic repressors generally recruit corepressor proteins to enhancers - Corepressor proteins on their own cannot bind to DNA, so they can associate with enhancers ...

RN VATI Fundamentals 2019 Assessment; Virtual ATI Test_ Answered Fall 2022. A nurse is preparing to mix short-acting and intermediate-acting insulin in one syringe to administer to a client who has type 1 diabetes mellitus. Identify the sequence the nurse should follow. A nurse is assessing a client who wears partial dentures and reports mouth pain. Which of the following actions should the nurse take? A nurse is planning care for a client who has dysphagia and is at risk for aspiratio...

TEST 1 BIO 1A03 QUESTIONS AND ANSWERS 100% PASS Central Dogma theory that states that, in cells, information only flows from DNA to RNA to proteins what enzyme is used to transcribe DNA and describe the process RNA polymerase attaches to specific promoter regions its these promoter regions which identifies the starting point, describe the DNA and RNA directionality and how the direction followed by RNA polymerase the 5' end has the 5'phosphate on a nucleotide the other end is the 3' OH grou...

CPHON Exam 93 Questions with Verified Answers G1 - CORRECT ANSWER The first gap, or growth phase, of the cell cycle, consisting of the portion of interphase before DNA synthesis begins. Cell grows larger and produces ribosome and proteins. S - CORRECT ANSWER All 46 chromosomes are replicated in the cells nucleus G2 - CORRECT ANSWER The second gap, or growth phase, of the cell cycle, consisting of the portion of interphase after DNA synthesis occurs. DNA is condensed into rod form . (...

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...

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...