Cap camp complex - Study guides, Class notes & Summaries

UNT Biology 1710 Practice Exam 3|52 Questions with Verified Answers An excellent example of the genetic phenomenon known as continuous variation would be: a. flower color in plants. b. height in humans. c. human blood groups. d. epistasis. e. fur color in arctic animals - CORRECT ANSWER B) height in humans A human genetic trait passed from one generation to the next has an unusual inheritance pattern. The genotype and phenotype of the offspring depends only upon the genotype of the mo...

Which of the following mutations would not lead to continuous transcription of the lac operon? A mutation in the repressor gene that prevents lactose from binding the repressor protein What effect does isopropylthiogalactoside (IPTG) have on the lac operon? It acts as an inducer of the lac operon, but is not metabolized by the gene products of the lac operon. 00:21 01:03 What is the preferred carbon source for E. coli? glucose What is the function of the product of th...

BIO Exam 4 Practice Test 174 Questions with Verified Answers The term polycistronic mRNA means: A.There is more than one mRNA strand produced during each round of transcription. B.There are multiple promotors to initiate transcription of this RNA. C.There are multiple operators for transcription of this RNA. D. There are multiple open reading frames in the mRNA produced. - CORRECT ANSWER D Please choose the true statement: A. During replication, the DNA leading strand is polymerized i...

The lac operon is expressed when - ANSWER glucose is low and lactose is absent When in a complex with ________, the CAP protein binds to the CAP site and ________ the expression of the lac operon. - ANSWER cAMP ; switches on In the absence of lactose, the lac repressor is - ANSWER active and can bind to the operator The inducer of the lac operon is an isomer of lactose. - ANSWER True When RNA polymerase is bound to the lac promoter sequence, transcription of the lac operon is on - AN...

USMLE STEP 1 Pharmacology Final Exam Review USMLE STEP 1 Pharmacology Final Exam Review What are the major functions of the α1 receptor? Increase vascular smooth muscle contraction, increase pupillary dilator muscle contraction (mydriasis), increase intestinal and bladder sphincter muscle contraction What are the major functions of the α2 receptor? Decrease sympathetic outflow, decrease insulin release, decrease lipolysis, increase platelet aggregation, decrease aqueous humor producti...

1 GENITOURINARY EXAM MASTER EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ Case A 62-year-old woman is being treated for chronic congestive heart failure. She has been put on hydrochlorothiazide therapy. Her serum electrolyte levels are being monitored and show a persistent hypokalemia. Question The addition of what to her therapeutic regimen would be most appropriate? Correct Answer: Correct Answer: Amiloride Explanation Amiloride is a potassium-sparing ...

GCD EXAM 2 WITH QUESTIONS AND ANSWERS In ________________, the closer that the -10 DNA sequence (also called a Pribnow Box) and the -35 sequence are to a consensus sequence, the stronger the promotor. - ANSWER>bacteria Eukaryotic Pol III RNA polymerase synthesizes __________________. - ANSWER>tRNA, 5SRNA, and Alu transposons _____________ acts as a helicase to form an open complex and also phosphorylates RNA pol II - ANSWER>TFIIH A protein's ______________ structure is its am...

BIO 130 Exam 3-Kemege DUE 3 OCTOBER 2023 (Y/N) In a bacterium that is in environment with no glucose but lactose is present, will the lac operon be expressed? - CORRECT ANSWER-Yes (Y/N) In a bacterium that is in environment with high levels of glucose but no lactose, will the lac operon be expressed? - CORRECT ANSWER-no (Y/N) In a bacterium that is in environment with high levels of both glucose and lactose, will the lac operon be expressed? - CORRECT ANSWER-no In bacteria, when gluc...

AP Bio Genetics, RNA, and DNA Practice Exam 110 Questions with Verified Answers In his transformation experiments, what did Griffith observe? a. Mutant mice were resistant to bacterial infections. b. Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form. c. Mixing a heat-killed nonpathogenic strain of bacteria with a living pathogenic strain makes the pathogenic strain nonpathogenic. d. Infecti...

Which of the following bond types is the weakest? Isotopic bonds Van der Waals forces Hydrogen bonds Ionic bonds Nonpolar covalent bonds Polar covalent bonds - answer-Van der Waals forces The lower the pH of a solution, the ________. lower the H+ concentration more neutral the solution is greater the number of oxygen atoms greater the number of H+ in solution less toxic the solution is - answer-greater the number of H+ in solution Which functional group is made of one N atom and...