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RNAS Practice Quiz 4.3 |20 Questions with Verified Answers During transcription, RNA polymerase joins nucleotides from 5′ to 3′. from left to right. from 3′ to 5′. from right to left. - CORRECT ANSWER from 5' to 3' In bacteria, RNA polymerase transcribes tRNA genes only. protein-coding genes only. rRNA genes and tRNA genes. all types of genes. - CORRECT ANSWER all types of genes In translation, DNA is converted to RNA. DNA is copied i...

Genetics Exam 2 practice exam 107 Questions with Verified Answers In five Hfr strains, each of which was used to build a time-of-entry map, the genes entered the recipient cells as follows: Strain 1: S L A C T F Strain 2: N P F T C A Strain 3: T F P N U Y Strain 4: S H Y U N P Strain 5: U N P F T C Which of the following represents a correct compilation of these results? A) S L A C T F P N H C U B) N P F T S L A C H U T C) T C A L S P N U Y H D) U N P F T C A L S T F E) S L A C T F...

Microbiology Exam 2 Practice Exam 23 Questions with Verified Answers Which of the following is NOT true about the word virus? a. It is of Latin origin and means poison. b. It is currently used to describe small, acellular entities that cause disease. c. It was used to describe disease-causing agents long before those agents were characterized. d. All of the above are true about the word virus. - CORRECT ANSWER d. All of the above are true about the word virus. In which of the f...

Microbiology Exam 2 practice Tests 208 Questions with Verified Answers Which of the following statements is correct? A) For every amino acid, there is one codon. B) A codon may signify more than one amino acid. C) For every codon, there is one amino acid. D) All of these are correct. - CORRECT ANSWER For every Codon, there is one amino acid The sigma factor of RNA polymerase is necessary for A) maximum transcription of the gene. B) termination of the mRNA chain. C) elongation...

VBS 2032 Exam 1 practice 45 Questions with Verified Answers Ribosomes are composed of: A. many proteins B. proteins and DNA C. proteins and RNA D. carbohydrates and RNA - CORRECT ANSWER C. proteins and RNA This group of bacteria moves using internal flagella called axial filaments. A. Streptococcus B. Staphylococcus C. Streptomyces sp. D. spirochetes - CORRECT ANSWER D. spirochetes A mycoses would most likely be treated with: A. rest and fluids B. an antibacterial dru...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

BIOL 3030 Practice Exam 40 Questions with Verified Answers Which enzyme untwists the parent strands of DNA during replication? - CORRECT ANSWER DNA helicase Tetrad analysis is a technique for a. determining base sequences in DNA b. mapping genes in organisms retaining the four meiotic products in one structure c. measuring the number of chromatids at meiosis d. separating neurospora mycelia - CORRECT ANSWER b. mapping genes in organisms retaining the four meiotic products in one struct...

BIOL 3030 Practice Exam 40 Questions with Verified Answers Which enzyme untwists the parent strands of DNA during replication? - CORRECT ANSWER DNA helicase Tetrad analysis is a technique for a. determining base sequences in DNA b. mapping genes in organisms retaining the four meiotic products in one structure c. measuring the number of chromatids at meiosis d. separating neurospora mycelia - CORRECT ANSWER b. mapping genes in organisms retaining the four meiotic products in one struct...

MBG 1000 Practice Exam 37 Questions with Verified Answers Somatic human cells contain: a) 2 pairs of sex chromosomes b) 46 pairs of chromosomes c) 46 chromosomes d) 46 autosomes e) none - CORRECT ANSWER C Which of the following in incorrect: a) a given human somatic cell only has 2 alleles for a given gene b) different alleles of a specific gene often arise through mutation of one of the gene copies c) the alleles of a gene are found at different loci on the 2 copies of the same au...

BIO 13 Practice Test 40 Questions with Verified Answers RNA contains the sugar a. ribose. b. deoxyribose. c. glucose. d. lactose. - CORRECT ANSWER a. ribose. Unlike DNA, RNA contains a. adenine. b. uracil. c. phosphate groups. d. thymine. - CORRECT ANSWER b. uracil. Which of the following are found in both DNA and RNA? a. ribose, phosphate groups, and adenine b. deoxyribose, phosphate groups, and guanine c. phosphate groups, guanine, and cytosine d. phosphate grou...

Virology Practice Test 32 Questions with Verified Answers The difference between "simple" retrovirus and "complex" retrovirus is? A) "Simple" retroviruses do not cause disease B) "Complex" retroviruses contain additional genes called accessory genes C) "Simple" retroviruses do not cause tumors D) "Complex" retroviruses carry viral oncogene E) Only "complex" retroviruses produce provirus - CORRECT ANSWER B, E What is the first biosynthetic event that occurs in cells i...

Practice Exam 2 Micro Nclex Type 247 Questions with Verified Answers A saprobe derives its energy from a) sunlight. b) conversion of nutrients from other organisms. c) utilizing the tissues/fluids of a living host. d) metabolizing the organic matter of dead organisms. - CORRECT ANSWER d) metabolizing the organic matter of dead organisms. Mineral ions used in microbial nutrition include a) sodium. b) potassium. c) calcium. d) magnesium. e) all of these. - CORRECT ...

RNAS-C Exam 4 Practice Test 75 Questions with Verified Answers A couple expecting their second child is worried about Rh incompatibility. Their first child was Rh+. They have their blood typed. Which result would be cause for alarm? A) both parents Rh- B) both parents Rh+ C) man Rh- and woman Rh+ D) man Rh+ and woman Rh- - CORRECT ANSWER D) man Rh+ and woman Rh- Research indicates that allergies may actually be due to a mutation in the gene that encodes a skin protein called __________...

Genetics Second Exam Practice Test 150 Questions with Verified Answers Which organism has polycistronic mRNA? (eukaryotic or prokaryotic) - CORRECT ANSWER Prokaryotic Do prokaryotes undergo splicing/processing? - CORRECT ANSWER No Where are attenuater sequences found? (what type of organism and what class of operons?) - CORRECT ANSWER In prokaryotic amino acid operons Do prokaryotic mRNA ALWAYs encode trans-acting factors? - CORRECT ANSWER No Which of the following statements is t...

Genetics Practice Exam 55 Questions with Verified Answers Which process is represented by the arrow labeled W? A. replication B. translation C. transcription D. RNA splicing - CORRECT ANSWER C Which of the labeled structures contains RNA with a catalytic function? A. 1 B. 2 C. 4 D. 5 E. 2, 3 and 4 - CORRECT ANSWER C Which of the labeled is made of chromatin? A. 1 B. 1 and 4 C. 4 D. 5 - CORRECT ANSWER A Which of the following molecules, NOT represented on this diagram, a...

RNAS-C Practice Test 3 (2)|40 Questions with Verified Answers A gene in a living organism is best defined as a. Three nucleotides that code for an amino acid. b. A sequence of nucleotides in DNA that codes for a functional product. c. A sequence of nucleotides in RNA that codes for a functional product. d. A transcribed unit of DNA. e. A transcribed unit of RNA. - CORRECT ANSWER A sequence of nucleotides in DNA that codes for a functional product. DNA is constructed of a. A sing...

Biotechnology exam practice 66 Questions with Verified Answers True or False? Protein drugs are structurally larger than conventional drugs - CORRECT ANSWER true true or false? most protein drugs are chemically synthesized - CORRECT ANSWER false true or false? molecular biotechnology can be defined as the use of living organisms to solve problems or to make useful products - CORRECT ANSWER false true or false? in recombinant DNA technology, a human protein can be produced from bacter...

MMSC490 Practice Exam 1|123 Questions with Verified Answers cytoplasmic organelles are: a. absent in prokaryotic cells and present in eukaryotic cells. b. present in both prokaryotic and eukaryotic cells. c. present in prokaryotic cells and absent in eukaryotic cells. d. absent in both prokaryotic and eukaryotic cells. - CORRECT ANSWER a. absent in prokaryotic cells and present in eukaryotic cells E. coli is a useful model system for molecular biology studies because: a. it has a smal...

BI 213 midterm 2 practice exam 79 Questions with Verified Answers What is the purpose of the TATA box found in eukaryotic promoters? A) It serves as a termination signal for RNA polymerase B) It sets the translation reading frame of the mRNA C) RNA polymerase II binds directly to the TATA box to initiate transcription D) It binds the first Met-tRNA for translation of the mRNA E) It is the binding site for general transcription factors that recruit RNA polymerase - CORRECT ANSWER E ...

Biochemistry Final Exam Practice 63 Questions with Verified Answers The central dogma of molecular biology teaches us that: a. RNA replicates itself and DNA is translated into protein b. RNA is typically the genetic material c. RNA contains information, which is translated into amino acid sequences d. Proteins are not needed to replicate DNA or transcribe RNA e. RNA is made of the same monomers as DNA - CORRECT ANSWER c. RNA contains information, which is translated into amino acid sequ...