Exam 3

A  regulator

B  terminator

C  promoter

D  operator

E  structural locus

A  gene probes

B  recombinant DNA

C  gel electrophoresis

D  genetic engineering

E  biotechnology

A  All of the choices are correct

B  air

C  liquids

D  medical instruments

E  human tissues

A  degermation

B  disinfection

C  sanitization

D  sterilization

E  antisepsis

A  occurs before translation

B  requires RNA polymerase

C  occurs on a ribosome in the cytoplasm

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

E  requires a template DNA strand

A  guanine pairs with uracil

B  they are only present in the form of purines

C  adenine pairs with thymine

D  form pairs by hydrogen bonding

E  cytosine and thymine are pyrimidines

A  hepatitis C virus

B  herpes zoster virus

C  respiratory syncytial virus

D  HIV

E  influenza A virus

A  ribosomal RNA

B  ribozymes

C  primer RNA

D  transfer RNA

E  messenger RNA

A  allylamines

B  echinocandins

C  azoles

D  macrolide polyenes

A  MIC

B  Antibiogram

C  Therapeutic index (TI)

D  E-test

E  Kirby-Bauer

A  synthesizes RNA primer

B  removes primers

C  adds bases to new DNA chain

D  unzips DNA

A  therapeutic index (TI)

B  MIC

C  Kirby-Bauer

D  E-test

E  antibiogram

A  helminthic

B  fungal

C  protozoan

D  bacterial

E  viral

A  sporicidal time

B  thermal death time (TDT)

C  thermal death point (TDP)

D  death phase point

A  exon

B  codon

C  anticodon

D  intron

A  denature

B  activate

C  bind

D  dissolve

A  degermation

B  sterilization

C  disinfection

D  antisepsis

E  sanitization

A  removes primer

B  synthesizes primer

C  adds new bases and proofreads new DNA

D  joins Okazaki fragments

E  unzips the DNA helix

A  amphotericin B

B  nystatin

C  metronidazole

D  griseofulvin

E  sulfa drugs

A  Filtration

B  Sterilization

C  Disinfection

D  Boiling

E  Radiation

A  lantibiotics

B  prophylaxis

C  prebiotics

D  competitive inhibition

E  synergism

A  All of the choices are correct.

B  target the cell wall

C  have an expanded spectrum of activity

D  are semisynthetic

E  have resistance to the action of penicillinase

A  Is inherited

B  Are structural genes coding for proteins

C  Are regulatory genes controlling gene expression

D  Are genes coding for RNA

E  Are the expressed traits governed by the genes

A  bacteriostatic

B  None of the choices are correct

C  sterilization

D  decontamination

E  bactericidal

A  amphotericin B

B  sulfa drugs

C  griseofulvin

D  nystatin

E  metronidazole

A  antisepsis

B  sterilization

C  sanitization

D  disinfection

E  ionization

A  operon

B  operator

C  intron

D  promoter

E  exon

A  Point

B  Back

C  Missense

D  Silent

E  Nonsense

A  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′

B  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

C  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

D  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

A  antisepsis

B  sanitization

C  disinfection

D  degermation

E  sterilization.

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

B  interfere with elongation of peptidoglycan

C  block peptidases that cross-link glycan molecules

D  block folic acid synthesis

E  damage cell membranes

A  isoniazid

B  vancomycin

C  penicillin G

D  aminoglycosides

E  synercid

A  disrupting membrane integrity

B  blocking transport out from the organism

C  blocking transport into the organism

D  coating the organism, preventing interaction with its environment

A  antisepsis

B  disinfection

C  decontamination

D  sterilization

E  degerming

A  pasteurization

B  batch pasteurization

C  flash pasteurization

D  ultra high temperature

A  chromosomes

B  All of the choices are correct.

C  chloroplast DNA

D  mitochondrial DNA

E  plasmids

A  chromosome

B  DNA

C  phenotype

D  genome

A  Deletion

B  Nonsense

C  Insertion

D  Missense

E  Silent

A  thermal death time (TDT)

B  death phase point

C  thermal death point (TDP)

D  None of the choices are correct

E  sporicidal time

A  replication

B  mitosis

C  mutation

D  transcription

E  translation

A  pyrimidine

B  amino acid

C  purine

D  nucleotide

E  protein

A  mutation

B  superinfections

C  drug toxicity

D  nephrotoxicity

E  allergic reactions

A  codon; DNA triplet

B  codon; anticodon

C  anticodon; codon

D  gene; complement

A  does not have thymine

B  has uracil

C  All of the choices are correct.

D  has ribose

E  is typically one strand of nucleotides

A  chromosome

B  genotype

C  gene

D  phenotype

A  Glutaraldehyde

B  3% hydrogen peroxide

C  Iodophor

D  Betadine (povidone-iodine)

E  Chlorhexidine

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

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

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

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

A  sulfhydryl

B  nonpolar covalent

C  peptide

D  hydrogen

A  antisepsis

B  ionization

C  disinfection

D  sanitization

A  Bactericide

B  Sporicide

C  Fungicide

D  Germicide