Exam 3

A  terminator

B  operator

C  structural locus

D  promoter

E  regulator

A  gene probes

B  recombinant DNA

C  biotechnology

D  gel electrophoresis

E  genetic engineering

A  All of the choices are correct

B  human tissues

C  liquids

D  air

E  medical instruments

A  sanitization

B  sterilization

C  antisepsis

D  degermation

E  disinfection

A  requires a template DNA strand

B  requires RNA polymerase

C  occurs before translation

D  occurs on a ribosome in the cytoplasm

E  proceeds in the 5′ to 3′ direction of the growing mRNA molecule

A  form pairs by hydrogen bonding

B  guanine pairs with uracil

C  they are only present in the form of purines

D  adenine pairs with thymine

E  cytosine and thymine are pyrimidines

A  respiratory syncytial virus

B  hepatitis C virus

C  influenza A virus

D  HIV

E  herpes zoster virus

A  ribosomal RNA

B  primer RNA

C  ribozymes

D  messenger RNA

E  transfer RNA

A  echinocandins

B  allylamines

C  azoles

D  macrolide polyenes

A  E-test

B  Therapeutic index (TI)

C  Antibiogram

D  Kirby-Bauer

E  MIC

A  unzips DNA

B  synthesizes RNA primer

C  removes primers

D  adds bases to new DNA chain

A  therapeutic index (TI)

B  antibiogram

C  E-test

D  Kirby-Bauer

E  MIC

A  protozoan

B  bacterial

C  fungal

D  viral

E  helminthic

A  thermal death time (TDT)

B  sporicidal time

C  death phase point

D  thermal death point (TDP)

A  codon

B  exon

C  anticodon

D  intron

A  bind

B  activate

C  dissolve

D  denature

A  disinfection

B  antisepsis

C  sterilization

D  degermation

E  sanitization

A  joins Okazaki fragments

B  removes primer

C  adds new bases and proofreads new DNA

D  synthesizes primer

E  unzips the DNA helix

A  metronidazole

B  nystatin

C  sulfa drugs

D  griseofulvin

E  amphotericin B

A  Boiling

B  Filtration

C  Sterilization

D  Radiation

E  Disinfection

A  lantibiotics

B  prebiotics

C  competitive inhibition

D  prophylaxis

E  synergism

A  All of the choices are correct.

B  target the cell wall

C  have an expanded spectrum of activity

D  have resistance to the action of penicillinase

E  are semisynthetic

A  Are genes coding for RNA

B  Are regulatory genes controlling gene expression

C  Is inherited

D  Are the expressed traits governed by the genes

E  Are structural genes coding for proteins

A  None of the choices are correct

B  sterilization

C  bacteriostatic

D  decontamination

E  bactericidal

A  metronidazole

B  sulfa drugs

C  nystatin

D  amphotericin B

E  griseofulvin

A  ionization

B  sanitization

C  antisepsis

D  disinfection

E  sterilization

A  intron

B  exon

C  operator

D  promoter

E  operon

A  Silent

B  Missense

C  Point

D  Nonsense

E  Back

A  the leading strand is synthesized continuously toward the replication fork, whereas the lagging strand extends away from the fork and is synthesized in short segments called Okazaki fragments

B  the leading strand is made in the 5′-3′ direction by DNA polymerase III, whereas the lagging strand is synthesized in the opposite direction, 3′-5′

C  the leading strand is synthesized away from the fork and is made in short segments called Okazaki fragments whereas the lagging strand extends continuously toward the replication fork

D  only the lagging strand requires a primer for each of the Okazaki fragments; the leading strand does not require a primer to begin synthesis of the daughter strand

A  sanitization

B  degermation

C  antisepsis

D  sterilization.

E  disinfection

A  interfere with elongation of peptidoglycan

B  attach to the 30S ribosomal subunit and disrupt protein synthesis

C  block folic acid synthesis

D  damage cell membranes

E  block peptidases that cross-link glycan molecules

A  synercid

B  aminoglycosides

C  vancomycin

D  isoniazid

E  penicillin G

A  disrupting membrane integrity

B  blocking transport into the organism

C  coating the organism, preventing interaction with its environment

D  blocking transport out from the organism

A  disinfection

B  decontamination

C  antisepsis

D  sterilization

E  degerming

A  ultra high temperature

B  pasteurization

C  batch pasteurization

D  flash pasteurization

A  chloroplast DNA

B  All of the choices are correct.

C  plasmids

D  chromosomes

E  mitochondrial DNA

A  phenotype

B  genome

C  chromosome

D  DNA

A  Missense

B  Insertion

C  Silent

D  Deletion

E  Nonsense

A  thermal death time (TDT)

B  thermal death point (TDP)

C  None of the choices are correct

D  sporicidal time

E  death phase point

A  mutation

B  replication

C  translation

D  mitosis

E  transcription

A  nucleotide

B  purine

C  pyrimidine

D  amino acid

E  protein

A  mutation

B  nephrotoxicity

C  allergic reactions

D  superinfections

E  drug toxicity

A  anticodon; codon

B  gene; complement

C  codon; anticodon

D  codon; DNA triplet

A  has ribose

B  is typically one strand of nucleotides

C  All of the choices are correct.

D  does not have thymine

E  has uracil

A  genotype

B  gene

C  phenotype

D  chromosome

A  Betadine (povidone-iodine)

B  Chlorhexidine

C  Iodophor

D  3% hydrogen peroxide

E  Glutaraldehyde

A  when part of a biofilm community, the bacterial cells express different genes thus changing their antibiotic susceptibility

B  the organisms in the biofilm degrade the antibiotics at a much faster rate than their free-living counterparts

C  organisms in a biofilm develop antibiotic resistance more rapidly than free-living cells

D  bacteria in a biofilm exist only on synthetic surfaces such as catheters, so they cannot be treated with antibiotics

A  nonpolar covalent

B  sulfhydryl

C  hydrogen

D  peptide

A  sanitization

B  antisepsis

C  disinfection

D  ionization

A  Sporicide

B  Fungicide

C  Bactericide

D  Germicide