Transcription factors Study guides, Class notes & Summaries

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...

ADVANCED PATHOPHYSIOLOGY- UTMB 5355 EXAM #1|320| QUESTIONS WITH CORRECT ANSWERS Transcription ANS-synthesis of RNA from DNA Transcription results in ANS-mRNA RNA polymerase makes ANS-mRNA mRNA ANS-makes proteins RNA polymerase ANS-binds to DNA Transcription factors (TFs) ANS-A regulatory protein that binds to DNA and affects transcription of specific genes. Can wither activate or repress expression of genes Termination of transcription ANS-RNA polymerase reaches a terminator s...

Test Bank for Introduction to General, Organic and Biochemistry 12e 12th Edition by Frederick A. Bettelheim; William H. Brown; Mary K. Campbell; Shawn O. Farrell; Omar Torres. ISBN-13: 1594 Full Chapters test bank Chapter 1: Matter, Energy, and Measurement 1.1 Chemistry and the Study of Matter 1.2 The Scientific Method 1.3 Reporting Numbers in Science 1.4 Making Measurements 1.5 Unit Conversions 1.6 States of Matter 1.7 Density and Specific Gravity 1.8 Describing the Various For...

Humans produce sweat as a cooling mechanism to maintain a stable internal temperature. Which of the following best explains how the properties of water contribute to this physiological process? - ANSWER The high heat of vaporization of water allows the body to remove excess heat through a phase change of water from liquid to gas A student placed a semipermeable membrane inside a U-shaped channel with two chambers, as shown. The membrane permits the movement of water but not salt. The...

TEST BANK ESSENTIALS OF PATHOPHYSIOLOGY (4TH EDITION BY PORTH) CONTENTS Chapter 01 - Cell Structure and Function .......................................................................................................................... 2 Chapter 02 - Cellular Responses to Stress, Injury, and Aging .......................................................................................... 7 Chapter 03 - Inflammation, the Inflammatory Response, and Fever ..............................................

CPPS IHI Practice Exam Actual Questions and Answers (2022/2023) In preparation for new antimicrobial stewardship regulatory requirements, a hospital is creating an antimicrobial stewardship committee. What should be the first step in supporting this new patient safety initiative? A. Reach out to subject matter experts to gain insight on different compliance issues. B. Work with information technology (IT) to build antibiotic indication and time-out screens. C. Partner with key stakeholders to...

You are most likely to see hag fish, sperm whales, and viperfish inhabiting which of the following zones of the ocean? a. abyssal b. bathypelagic c. epipelagic d. mesopelagic - bathypelagic What was the first seed plant to appear? a. angiosperm b. bryophytes c. gymnosperm d. nonvascular plants - gymnosperm In a pedigree for an autosomal recessive disorder, which of the following will occur if two homozygous unaffected individuals mate? a. They will have affected offspring. ...

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...

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...

You are most likely to see hag fish, sperm whales, and viperfish inhabiting which of the following zones of the ocean? a. abyssal b. bathypelagic c. epipelagic d. mesopelagic - Correct Answer-bathypelagic What was the first seed plant to appear? a. angiosperm b. bryophytes c. gymnosperm d. nonvascular plants - Correct Answer-gymnosperm In a pedigree for an autosomal recessive disorder, which of the following will occur if two homozygous unaffected individuals mate? a. They will have affected off...