Exam 3

A  terminator

B  operator

C  regulator

D  structural locus

E  promoter

A  gene probes

B  biotechnology

C  genetic engineering

D  recombinant DNA

E  gel electrophoresis

A  air

B  All of the choices are correct

C  medical instruments

D  human tissues

E  liquids

A  sterilization

B  disinfection

C  degermation

D  antisepsis

E  sanitization

A  occurs on a ribosome in the cytoplasm

B  requires RNA polymerase

C  requires a template DNA strand

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

E  occurs before translation

A  adenine pairs with thymine

B  form pairs by hydrogen bonding

C  cytosine and thymine are pyrimidines

D  guanine pairs with uracil

E  they are only present in the form of purines

A  hepatitis C virus

B  herpes zoster virus

C  influenza A virus

D  respiratory syncytial virus

E  HIV

A  ribosomal RNA

B  ribozymes

C  messenger RNA

D  primer RNA

E  transfer RNA

A  azoles

B  allylamines

C  echinocandins

D  macrolide polyenes

A  Kirby-Bauer

B  MIC

C  Antibiogram

D  Therapeutic index (TI)

E  E-test

A  unzips DNA

B  synthesizes RNA primer

C  removes primers

D  adds bases to new DNA chain

A  antibiogram

B  Kirby-Bauer

C  therapeutic index (TI)

D  MIC

E  E-test

A  bacterial

B  helminthic

C  fungal

D  protozoan

E  viral

A  death phase point

B  thermal death point (TDP)

C  thermal death time (TDT)

D  sporicidal time

A  anticodon

B  codon

C  exon

D  intron

A  activate

B  denature

C  bind

D  dissolve

A  disinfection

B  antisepsis

C  sterilization

D  degermation

E  sanitization

A  unzips the DNA helix

B  adds new bases and proofreads new DNA

C  synthesizes primer

D  joins Okazaki fragments

E  removes primer

A  nystatin

B  griseofulvin

C  amphotericin B

D  metronidazole

E  sulfa drugs

A  Filtration

B  Boiling

C  Radiation

D  Disinfection

E  Sterilization

A  synergism

B  prophylaxis

C  prebiotics

D  lantibiotics

E  competitive inhibition

A  All of the choices are correct.

B  have resistance to the action of penicillinase

C  target the cell wall

D  are semisynthetic

E  have an expanded spectrum of activity

A  Are regulatory genes controlling gene expression

B  Is inherited

C  Are the expressed traits governed by the genes

D  Are structural genes coding for proteins

E  Are genes coding for RNA

A  bacteriostatic

B  None of the choices are correct

C  decontamination

D  sterilization

E  bactericidal

A  griseofulvin

B  amphotericin B

C  sulfa drugs

D  metronidazole

E  nystatin

A  antisepsis

B  ionization

C  sanitization

D  disinfection

E  sterilization

A  promoter

B  exon

C  operator

D  intron

E  operon

A  Missense

B  Back

C  Nonsense

D  Silent

E  Point

A  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

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  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  degermation

B  sanitization

C  sterilization.

D  disinfection

E  antisepsis

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  penicillin G

B  isoniazid

C  vancomycin

D  synercid

E  aminoglycosides

A  blocking transport into the organism

B  disrupting membrane integrity

C  coating the organism, preventing interaction with its environment

D  blocking transport out from the organism

A  decontamination

B  degerming

C  sterilization

D  antisepsis

E  disinfection

A  batch pasteurization

B  flash pasteurization

C  pasteurization

D  ultra high temperature

A  All of the choices are correct.

B  chromosomes

C  mitochondrial DNA

D  chloroplast DNA

E  plasmids

A  DNA

B  phenotype

C  chromosome

D  genome

A  Missense

B  Deletion

C  Insertion

D  Nonsense

E  Silent

A  None of the choices are correct

B  thermal death point (TDP)

C  death phase point

D  sporicidal time

E  thermal death time (TDT)

A  transcription

B  replication

C  translation

D  mutation

E  mitosis

A  amino acid

B  purine

C  protein

D  nucleotide

E  pyrimidine

A  mutation

B  superinfections

C  allergic reactions

D  nephrotoxicity

E  drug toxicity

A  codon; DNA triplet

B  gene; complement

C  codon; anticodon

D  anticodon; codon

A  has ribose

B  does not have thymine

C  is typically one strand of nucleotides

D  has uracil

E  All of the choices are correct.

A  gene

B  genotype

C  chromosome

D  phenotype

A  Chlorhexidine

B  Glutaraldehyde

C  Betadine (povidone-iodine)

D  Iodophor

E  3% hydrogen peroxide

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

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

A  hydrogen

B  nonpolar covalent

C  sulfhydryl

D  peptide

A  disinfection

B  sanitization

C  antisepsis

D  ionization

A  Germicide

B  Sporicide

C  Bactericide

D  Fungicide