Exam 3

A  terminator

B  regulator

C  structural locus

D  operator

E  promoter

A  genetic engineering

B  biotechnology

C  gene probes

D  gel electrophoresis

E  recombinant DNA

A  medical instruments

B  human tissues

C  liquids

D  air

E  All of the choices are correct

A  degermation

B  sanitization

C  disinfection

D  sterilization

E  antisepsis

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

B  requires a template DNA strand

C  requires RNA polymerase

D  occurs before translation

E  occurs on a ribosome in the cytoplasm

A  cytosine and thymine are pyrimidines

B  guanine pairs with uracil

C  they are only present in the form of purines

D  form pairs by hydrogen bonding

E  adenine pairs with thymine

A  respiratory syncytial virus

B  hepatitis C virus

C  herpes zoster virus

D  HIV

E  influenza A virus

A  ribozymes

B  transfer RNA

C  ribosomal RNA

D  messenger RNA

E  primer RNA

A  echinocandins

B  allylamines

C  azoles

D  macrolide polyenes

A  Therapeutic index (TI)

B  Antibiogram

C  E-test

D  MIC

E  Kirby-Bauer

A  adds bases to new DNA chain

B  synthesizes RNA primer

C  removes primers

D  unzips DNA

A  MIC

B  antibiogram

C  Kirby-Bauer

D  E-test

E  therapeutic index (TI)

A  helminthic

B  bacterial

C  viral

D  protozoan

E  fungal

A  thermal death point (TDP)

B  thermal death time (TDT)

C  sporicidal time

D  death phase point

A  anticodon

B  intron

C  exon

D  codon

A  activate

B  dissolve

C  bind

D  denature

A  degermation

B  antisepsis

C  disinfection

D  sterilization

E  sanitization

A  adds new bases and proofreads new DNA

B  unzips the DNA helix

C  synthesizes primer

D  removes primer

E  joins Okazaki fragments

A  metronidazole

B  griseofulvin

C  sulfa drugs

D  nystatin

E  amphotericin B

A  Disinfection

B  Sterilization

C  Boiling

D  Radiation

E  Filtration

A  competitive inhibition

B  prophylaxis

C  synergism

D  prebiotics

E  lantibiotics

A  have an expanded spectrum of activity

B  All of the choices are correct.

C  have resistance to the action of penicillinase

D  are semisynthetic

E  target the cell wall

A  Are regulatory genes controlling gene expression

B  Are genes coding for RNA

C  Are structural genes coding for proteins

D  Is inherited

E  Are the expressed traits governed by the genes

A  bacteriostatic

B  sterilization

C  bactericidal

D  decontamination

E  None of the choices are correct

A  griseofulvin

B  sulfa drugs

C  amphotericin B

D  nystatin

E  metronidazole

A  sterilization

B  ionization

C  antisepsis

D  disinfection

E  sanitization

A  exon

B  promoter

C  operator

D  intron

E  operon

A  Silent

B  Point

C  Missense

D  Back

E  Nonsense

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

A  sanitization

B  sterilization.

C  degermation

D  disinfection

E  antisepsis

A  interfere with elongation of peptidoglycan

B  block peptidases that cross-link glycan molecules

C  block folic acid synthesis

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

E  damage cell membranes

A  aminoglycosides

B  isoniazid

C  synercid

D  penicillin G

E  vancomycin

A  blocking transport into the organism

B  blocking transport out from the organism

C  coating the organism, preventing interaction with its environment

D  disrupting membrane integrity

A  disinfection

B  antisepsis

C  sterilization

D  degerming

E  decontamination

A  batch pasteurization

B  ultra high temperature

C  pasteurization

D  flash pasteurization

A  All of the choices are correct.

B  plasmids

C  mitochondrial DNA

D  chromosomes

E  chloroplast DNA

A  DNA

B  phenotype

C  chromosome

D  genome

A  Silent

B  Nonsense

C  Insertion

D  Deletion

E  Missense

A  thermal death point (TDP)

B  None of the choices are correct

C  sporicidal time

D  thermal death time (TDT)

E  death phase point

A  transcription

B  mutation

C  translation

D  replication

E  mitosis

A  purine

B  protein

C  pyrimidine

D  nucleotide

E  amino acid

A  superinfections

B  mutation

C  allergic reactions

D  drug toxicity

E  nephrotoxicity

A  codon; anticodon

B  anticodon; codon

C  gene; complement

D  codon; DNA triplet

A  has uracil

B  has ribose

C  is typically one strand of nucleotides

D  All of the choices are correct.

E  does not have thymine

A  genotype

B  chromosome

C  phenotype

D  gene

A  Glutaraldehyde

B  Betadine (povidone-iodine)

C  Iodophor

D  Chlorhexidine

E  3% hydrogen peroxide

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  nonpolar covalent

B  hydrogen

C  sulfhydryl

D  peptide

A  antisepsis

B  ionization

C  sanitization

D  disinfection

A  Bactericide

B  Sporicide

C  Germicide

D  Fungicide