Exam 3

A  terminator

B  structural locus

C  promoter

D  regulator

E  operator

A  gel electrophoresis

B  biotechnology

C  gene probes

D  genetic engineering

E  recombinant DNA

A  human tissues

B  All of the choices are correct

C  medical instruments

D  liquids

E  air

A  antisepsis

B  sterilization

C  degermation

D  disinfection

E  sanitization

A  occurs on a ribosome in the cytoplasm

B  occurs before translation

C  requires RNA polymerase

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

E  requires a template DNA strand

A  form pairs by hydrogen bonding

B  guanine pairs with uracil

C  adenine pairs with thymine

D  cytosine and thymine are pyrimidines

E  they are only present in the form of purines

A  herpes zoster virus

B  hepatitis C virus

C  HIV

D  respiratory syncytial virus

E  influenza A virus

A  messenger RNA

B  transfer RNA

C  ribosomal RNA

D  primer RNA

E  ribozymes

A  azoles

B  macrolide polyenes

C  allylamines

D  echinocandins

A  Therapeutic index (TI)

B  Antibiogram

C  MIC

D  Kirby-Bauer

E  E-test

A  synthesizes RNA primer

B  unzips DNA

C  adds bases to new DNA chain

D  removes primers

A  antibiogram

B  E-test

C  Kirby-Bauer

D  MIC

E  therapeutic index (TI)

A  protozoan

B  fungal

C  bacterial

D  helminthic

E  viral

A  thermal death point (TDP)

B  thermal death time (TDT)

C  sporicidal time

D  death phase point

A  codon

B  exon

C  intron

D  anticodon

A  denature

B  activate

C  dissolve

D  bind

A  antisepsis

B  degermation

C  sanitization

D  sterilization

E  disinfection

A  adds new bases and proofreads new DNA

B  unzips the DNA helix

C  joins Okazaki fragments

D  removes primer

E  synthesizes primer

A  metronidazole

B  amphotericin B

C  griseofulvin

D  sulfa drugs

E  nystatin

A  Disinfection

B  Radiation

C  Boiling

D  Filtration

E  Sterilization

A  competitive inhibition

B  lantibiotics

C  prebiotics

D  synergism

E  prophylaxis

A  have resistance to the action of penicillinase

B  are semisynthetic

C  target the cell wall

D  All of the choices are correct.

E  have an expanded spectrum of activity

A  Are the expressed traits governed by the genes

B  Are structural genes coding for proteins

C  Is inherited

D  Are genes coding for RNA

E  Are regulatory genes controlling gene expression

A  decontamination

B  None of the choices are correct

C  sterilization

D  bactericidal

E  bacteriostatic

A  nystatin

B  sulfa drugs

C  griseofulvin

D  metronidazole

E  amphotericin B

A  sterilization

B  sanitization

C  disinfection

D  antisepsis

E  ionization

A  operator

B  operon

C  exon

D  intron

E  promoter

A  Point

B  Nonsense

C  Back

D  Missense

E  Silent

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

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  antisepsis

B  sanitization

C  sterilization.

D  disinfection

E  degermation

A  block folic acid synthesis

B  damage cell membranes

C  block peptidases that cross-link glycan molecules

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

E  interfere with elongation of peptidoglycan

A  isoniazid

B  synercid

C  aminoglycosides

D  penicillin G

E  vancomycin

A  blocking transport out from the organism

B  coating the organism, preventing interaction with its environment

C  disrupting membrane integrity

D  blocking transport into the organism

A  decontamination

B  degerming

C  sterilization

D  antisepsis

E  disinfection

A  pasteurization

B  ultra high temperature

C  batch pasteurization

D  flash pasteurization

A  mitochondrial DNA

B  All of the choices are correct.

C  chloroplast DNA

D  plasmids

E  chromosomes

A  phenotype

B  chromosome

C  DNA

D  genome

A  Nonsense

B  Deletion

C  Insertion

D  Silent

E  Missense

A  None of the choices are correct

B  death phase point

C  thermal death time (TDT)

D  thermal death point (TDP)

E  sporicidal time

A  translation

B  mutation

C  replication

D  transcription

E  mitosis

A  amino acid

B  pyrimidine

C  protein

D  purine

E  nucleotide

A  nephrotoxicity

B  superinfections

C  mutation

D  allergic reactions

E  drug toxicity

A  codon; anticodon

B  anticodon; codon

C  gene; complement

D  codon; DNA triplet

A  is typically one strand of nucleotides

B  All of the choices are correct.

C  has ribose

D  does not have thymine

E  has uracil

A  chromosome

B  phenotype

C  genotype

D  gene

A  Iodophor

B  3% hydrogen peroxide

C  Chlorhexidine

D  Betadine (povidone-iodine)

E  Glutaraldehyde

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

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

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

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

A  sulfhydryl

B  hydrogen

C  peptide

D  nonpolar covalent

A  disinfection

B  antisepsis

C  sanitization

D  ionization

A  Sporicide

B  Germicide

C  Fungicide

D  Bactericide