Best Study Guide Exams Questions and Answers

BCH 361 CH 1 EXAM QUESTIONS WITH ALL CORRECT ANSWERS Which of the following would NOT be part of a complex carrying out the process of translation? a) amino acids b) mRNA c) DNA d) ribosome - Answer-c What is the main difference between a prokaryotic cell and a eukaryotic cell? a) Prokaryotic cells do not contain membranes. b) Eukaryotic cells have a periplasmic space. c) Eukaryotic cells have membrane-enclosed compartments. d) Prokaryotic cells do not contain DNA. - Answer-...

BCH 361 EXAM 2 QUESTIONS WITH ALL VERIFIED ANSWERS The DNA in each human cell if connected and fully extended will be meters long. - Answer-2 Supercoiling accounts for some of the compaction of the DNA, but further compaction occurs by to the DNA. - Answer-binding certain proteins chromatin - Answer-is the entire complement of a cell's DNA and its associated proteins. histones - Answer-are highly basic proteins that are components of chromatin. Histones (an octamer that contains two...

BCH 369 EXAM 3 QUESTIONS WITH ALL REVISED ANSWERS Which of the following is(are) used to determine to which family a virus is categorized? - Answer-Viruses can be categorized by: whether its genome is composed of single-stranded DNA. whether its genome is composed of double-stranded DNA. whether it has a membrane envelope. whether its genome is composed of single-stranded RNA. Suppose you want to design a drug to fight a virus. Which of the following would be good choices? (Select all...

BCH 369 EXAM 4 QUESTIONS WITH REVISED ANSWERS The commercial herbicide Roundup inhibits chorismate synthesis in plants. Chorismate is the precursor for the biosynthesis of aromatic amino acids. Which amino acids would likely become essential for weeds growing in crop-fields being sprayed with Roundup ("Roundup ready")? A) Phe, Pro, Thr B) Phe, Tyr, Trp C) Tyr, Trp, Thr D) Pro, Tyr, Phe E) Pro, Tyr, Trp - Answer-B) Phe, Tyr, Trp What is the product of the following transaminase reaction: a...

BCH 369 CHAPTER 7 TEST QUESTIONS WITH ANSWERS ALL REVISED AND UPDATED Michaelis-Menten equation - Answer-A mathematical expression that describes the activity of an enzyme in terms of the substrate concentration ([S]), the enzyme's maximal velocity (Vmax), and its michaelis constant (Km): Vo = Vmax [S]/(Km + [S]). catalytic constant (Kcat) - Answer-The ratio of the maximal velocity (Vmax) of an enzyme-catalyzed reaction to the enzyme concentration. Also called a turnover number. Turnover...

BCH 369 TEST 3 QUESTIONS WITH ALL ANSWERS CERTIFIED Two species of bacteria have been isolated, one from a hot spring (average temperature 50°C) and another from a glacial lake (average temperature 4°C). Which of the following statements about the membrane composition of the "hot" and "cold" species is most likely CORRECT? A) Lipids from "hot" membranes contain a greater proportion of longer-chain fatty acids than lipids from "cold" membranes. B) Lipids from "hot" membranes conta...

BCH403 FINAL EXAM QUESTIONS WITH REVISED ANSWERS – UPDATED!! translation. - Answer-Release factors Argonaute: - Answer-Selects which strand of miRNA will be used to target mRNA When run on an agarose gel, DNA will migrate through the gel: - Answer-Naturally because DNA is already overwhelmingly negative A technique commonly used to separate proteins based solely on length is called: - Answer-SDS-Polyacrylamide gel electrophoresis (SDS-PAGE) Alternative splicing: - Answer-requires...

BCH403 PRACTICE TEST QUESTIONS WITH CERTIFIED ANSWERS E6: Which one of the following mRNA sequences contain an arginine residue as the 4th amino acid in reading frame 3? A codon table is located on the last page of this exam booklet. - Answer-5' UUUGACCGACCAGAACCC 3' E6: Which one of the following is not involved in translation initiation prokaryotes? - Answer-Methionyl-tRNA E6: Which of the following post-translational modifications is most common in humans? - Answer-Phosphorylation ...

BCH 403 FINAL TEST QUESTIONS WITH VERIFIED ANSWERS Which one of the following proteins catalyzes the 5' --> 5' bond when adding the 5' cap to mRNA - Answer-RNA guanylyltransferase which one of the following mRNA sequences contain an arginine residue as the 4th amino acid in the reading frame 3? A codon table is located on the last page of this exam booklet - Answer-5' UUUGACCGACCAGAACCC 3' Which one of the following is not involved in translation initiation in prokaryotes? - Ans...

BCH 403 – CUMULATIVE TEST QUESTIONS WITH ALL CORRECT ANSWERS During translocation, the ribosome is moved towards the 3' end of the mRNA. In eukaryotes, this requires: A. eEF1α. B. eEF1βγ. C. eEF2. D. EF-G. E. EF-Ts - Answer-C. eEF2 Peptidyltransferase: A. requires GTP as an energy source. B. is found on the large ribosomal subunit in both prokaryotes and eukaryotes. C. is found within the protein components of the ribosome. D. acts between the P- and E-sites of the ribosome. ...

BCH5413 TESTED QUESTIONS WITH REVISED ANSWERS Gel electrophoresis separates nucleic acids on the basis of... - Answer-Size *Larger sizes have more difficult traveling through the gel matrix an run slower than smaller fragments. Which of the following statements regarding the stringency of a Southern Blot is correct? - Answer-Decreasing the ionic strength increases stringency because less ions in solution make it more difficult for DNA fragments to anneal. A sample with higher Ct value wo...

BCH 5413 1-4 TEST QUESTIONS WITH ALL CORRECT ANSWERS Does DNA move toward the negative or positive pole in gel electrophoresis? Do the smaller or bigger fragments move faster through the gel? - Answer-Positive; smaller As you increase the amount of micrococcal nuclease... - Answer-more and more fragments will be brought down to smaller size. What did Avery, McLeod, and McCartney do? - Answer-They showed that if DNA is present, the non-pathogenic R-strain bacteria would transform into an S...

BCH 5413 EXAM ONE QUESTIONS WITH VERIFIED ANSWERS Where in the genome are loxP sites located in a Cre/Lox model? - Answer-On either side of the gene that is to be knocked out In which organism was the CRISPR system discovered? - Answer-e. coli In the immunization phase, what happens to the foreign viral DNA? - Answer-Cleaved into pieces by cas complex and the fragments are called spacers. Some of the viral fragments will become a part of the sequence. What RNAs are present in the Cas9...

BCH5413 TEST 2 QUESTIONS AND ANSWERS ALL REVISED AND UPDATED Function of clamp loader - ask whether loader is catalytic or loads one clamp per DNA and then stops - Answer-- circular ssDNA + primer + clamp/Pol subunit - with increasing amount of clamp loader, increasing synthesis of DNA is seen *result shows that it functions catalytically (one loader can load clamp onto 10 molecules of template) Function of clamp loader - ask whether loader remains associated with pre-initiation complex or...

BUL5810 EXAM QUESTIONS WITH REVISED ANSWERS When alcoholic beverages were made available to underage drinkers, creating a case of negligence per se. In Love v. Hardee's Food Systems, Inc. the main issue in this case was: a. whetherthe owner or possessor of property should keep the floors dry at all times. b. whether the owner or possessor of property is liable to an invitee if the owner knew, or should have known of a dangerous condition and failed to take action to fix it, barricade peo...

BUL 5810 MIDTERM EXAM TEST QUESTIONS WITH UPDATED AND REVISED ANSWERS Brown vs. Board of Education (1954) - Answer-Supreme Court declared it unconstitutional for states to make laws separating public schools for black and white students Marbury vs. Madison - Answer-Established judicial review - the power of the federal courts to declare legislative and executive acts unconstitutional FOIA (Freedom of Information Act) of 1966 - Answer-Requires federal agencies to release files to the publi...

BUL5810 EXAM 1 QUESTIONS WITH COMPLETE SOLUTIONS After reviewing the chapter, how would you compare the business law topics governed by the common law versus those that are governed largely by statute? - Answer-While some business law topics still are governed by common law, most areas of commercial law have become largely statutory In Caldwell v. Bechtel, Inc., Caldwell sued Bechtel for damages related to work that Caldwell performed for Bechtel as part of the metropolitan subway system in ...

BUL 5810 – CORPORATIONS TEST QUESTIONS WITH CERTIFIED ANSWERS Wyatt, the sole stockholder of International Travel Corporation, wrongfully used the corporation to avoid a personal liability. A court's disregarding the corporate entity and holding Wyatt personally liable is called: - Answer-piercing the corporate veil Claire opened Claire's Beauty Parlor in her home. She solicited funds to begin the business from Jack, who believed that the business was incorporated. Claire had, in fact, ...

BUL 5810 EXAM 3 QUESTIONS WITH COMPLETE SOLUTIONS Course of dealing refers to: - Answer-a sequence of previous conduct between the parties establishing a common basis for interpreting their agreement. Usage of trade is: - Answer-a practice or method of dealing regularly observed and followed in a place, vocation, or trade. The Code establishes separate rules that apply to transactions between merchants or involving a merchant; a merchant is defined as: - Answer-A dealer in goods or a pers...

BUL 5810 – CORPORATIONS TEST 2 QUESTIONS WITH REVISED ANSWERS The Ajax Corporation issues bonds that pay a minimum of 6% interest but that can pay more if corporate earnings reach certain specified levels. The holder of the bond may exchange it for stock of the corporation. This bond would be a: - Answer-convertible bond Allen owns 200 of the 1,000 shares outstanding of General Myopics. GM plans to issue 1,000 new shares. If Allen has preemptive rights, he may buy: - Answer-200 shares at t...