Basal transcription Samenvattingen, Aantekeningen en Examens
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CMB2001 Questions and Answer | Latest Update 2024/2025
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Describe how H3Lys9me heterochromatin is formed 
 ~~> H3Lys9me heterochromatin formation: Lys9 deacetylated by 
HDAC. Suvar39 then methylates lys9. Methylated lys9 is recognised by 
HP1 and then HP1 binds. HP1 has chromodomain - chromodomains 
often recognise and bind to methylated lys residues. Chromodomain 
on HP1 is specific for H3Lys9me (with di or tri methylated lys 9). Binding 
of HP1 is thought to compact nucleosome arrays as HP1s join together. 
What is gene expression? 
 ~~> ...
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Biology 171 UH MANOA (Questions & Answers) Rated 100% Correct!!
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3 transfers of DNA - Transformation: bacteria takes up naked DNA 
Transduction: a virus transfers the genes 
Conjugation: a hollow tube, or pilus transfers genes between organisms 
A population has 700 individuals, 85 of genotype AA, 320 of 
genotype Aa, and 295 of genotype aa. What are the allele 
frequencies of A (p) and a (q)? 
A. p = 0.58, q = 0.42 
B. p = 0.35, q = 0.65 
C. p = 0.65, q = 0.35 
D. p = 0.50, q = 0.50 - Total number of alleles = 700 x 2 = 1400 
p = ((85x2)+320)/1400 = 0.35 
q ...
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TEST BANK FOR GUYTON AND HALL TEXTBOOK OF MEDICAL PHYSIOLOGY BY HALL 12TH EDITION
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TABLE OF CONTENTS 
I. Introduction to physiology: the cell and general physiology. 
1. Functional organization of the human body and control of the 'internal environment; 
2. The cell and its functions; 
3. Genetic control of protein synthesis, cell function, and cell reproduction 
II. Membrane physiology, nerve, and muscle. 
4. The DNA code in the cell nucleus is transferred to an RNA code in the cell cytoplasm 
the process of transcription; 
5. Membrane potentials and action potentials; 
6. C...
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CMB2001 Questions and Answer | Latest Update 2024/2025
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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...
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Test Bank Porth Pathophysiology Concepts of Altered Health States 2nd Canadian Edition
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Test Bank Porth Pathophysiology Concepts of Altered Health States 2nd Canadian EditionTable of Contents Chapter 01: Concepts of Health and Disease .......................................................................................................... 2 Chapter 02: Concepts of Altered Health in Children ............................................................................................. 13 Chapter 03: Concepts of Altered Health in Older Adults ............................................
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Bio 212 Exam 2| 256 Questions with Correct Answers| Already Passed
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The sequence of one strand of DNA is shown below. Which of the following is the sequence of its complementary strand? 3′ ATTTGGCC 5′ 5' TAAACCGG 3' 
DNA polymerases are enzymes that build DNA. They catalyze ____ reactions leading to the formation of ____ bonds. condensation; phosphodiester 
A bacterium is infected with an experimentally constructed bacteriophage composed of the T2 phage protein coat and T4 phage DNA. The new phages produced would have -------. T4 protein and T4 DNA 
Which ...
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Chapter 13 Practice Exam 42 Questions with Verified Answers,100% CORRECT
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Chapter 13 Practice Exam 42 Questions with Verified Answers 
 
Which of the following is a type of RNA that gets translated? 
A) rRNA 
B) mRNA 
C) tRNA 
D) miRNA 
E) A, B, and C all get translated. - CORRECT ANSWER B 
 
Which of the following RNA molecules are required for the process of translation? 
A) crRNA 
B) tRNA 
C) snRNA 
D) snoRNA 
E) siRNA - CORRECT ANSWER B 
 
Over time, DNA replaced RNA as the primary carrier of genetic information, and the chemical stability of DNA is believed to be...
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Psychopharm Exam 1 practice 170 Questions with Verified Answers,100% CORRECT
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Psychopharm Exam 1 practice 170 Questions with Verified Answers 
 
The PMHNP is evaluating a 68-year-old man for symptoms of major depression. While assessing the appearance of the patient, an obvious left-sided ptosis is noted. Which cranial nerve is directly linked to this condition? 
a. III 
b. IV 
c. V 
d. VI - CORRECT ANSWER A 
 
A 55-year-old woman has been referred for a psychiatric evaluation for a change in personality, lack of impulse control, and increasingly reckless decision-making....
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Test Bank Porth Pathophysiology Concepts of Altered Health States 2nd Canadian Edition
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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 .............................................................
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BIO Practice from Practice Exam 2|112 Questions with Verified Answers,100% CORRECT
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BIO Practice from Practice Exam 2|112 Questions with Verified Answers 
 
Complementary base-pairing allows for 
A) genes to be expressed as phenotype. 
B) spontaneous mutations to occur. 
C) covalent bonds to form between the opposite bases. 
D) replication to be semiconservative. 
E) DNA to serve as its own template for replication. - CORRECT ANSWER E) DNA to serve as its own template for replication. 
 
6) The process by which genetic information is transferred from DNA to RNA is called ...
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