Exam 3

A  operator

B  structural locus

C  regulator

D  promoter

E  terminator

A  gene probes

B  recombinant DNA

C  gel electrophoresis

D  genetic engineering

E  biotechnology

A  air

B  medical instruments

C  liquids

D  human tissues

E  All of the choices are correct

A  antisepsis

B  degermation

C  sanitization

D  disinfection

E  sterilization

A  requires RNA polymerase

B  occurs on a ribosome in the cytoplasm

C  occurs before translation

D  requires a template DNA strand

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

A  adenine pairs with thymine

B  form pairs by hydrogen bonding

C  guanine pairs with uracil

D  they are only present in the form of purines

E  cytosine and thymine are pyrimidines

A  influenza A virus

B  herpes zoster virus

C  hepatitis C virus

D  HIV

E  respiratory syncytial virus

A  ribosomal RNA

B  messenger RNA

C  transfer RNA

D  ribozymes

E  primer RNA

A  azoles

B  macrolide polyenes

C  echinocandins

D  allylamines

A  E-test

B  MIC

C  Kirby-Bauer

D  Therapeutic index (TI)

E  Antibiogram

A  adds bases to new DNA chain

B  synthesizes RNA primer

C  removes primers

D  unzips DNA

A  antibiogram

B  Kirby-Bauer

C  MIC

D  E-test

E  therapeutic index (TI)

A  fungal

B  helminthic

C  viral

D  protozoan

E  bacterial

A  death phase point

B  thermal death point (TDP)

C  sporicidal time

D  thermal death time (TDT)

A  exon

B  codon

C  anticodon

D  intron

A  dissolve

B  bind

C  activate

D  denature

A  sterilization

B  sanitization

C  disinfection

D  antisepsis

E  degermation

A  synthesizes primer

B  adds new bases and proofreads new DNA

C  unzips the DNA helix

D  removes primer

E  joins Okazaki fragments

A  amphotericin B

B  sulfa drugs

C  griseofulvin

D  metronidazole

E  nystatin

A  Radiation

B  Filtration

C  Disinfection

D  Sterilization

E  Boiling

A  synergism

B  prophylaxis

C  lantibiotics

D  competitive inhibition

E  prebiotics

A  target the cell wall

B  have an expanded spectrum of activity

C  have resistance to the action of penicillinase

D  All of the choices are correct.

E  are semisynthetic

A  Are regulatory genes controlling gene expression

B  Are the expressed traits governed by the genes

C  Is inherited

D  Are structural genes coding for proteins

E  Are genes coding for RNA

A  None of the choices are correct

B  sterilization

C  decontamination

D  bactericidal

E  bacteriostatic

A  amphotericin B

B  nystatin

C  griseofulvin

D  sulfa drugs

E  metronidazole

A  sterilization

B  antisepsis

C  ionization

D  disinfection

E  sanitization

A  operon

B  promoter

C  exon

D  intron

E  operator

A  Silent

B  Back

C  Missense

D  Point

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  sterilization.

B  sanitization

C  antisepsis

D  disinfection

E  degermation

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

B  block folic acid synthesis

C  block peptidases that cross-link glycan molecules

D  interfere with elongation of peptidoglycan

E  damage cell membranes

A  isoniazid

B  vancomycin

C  aminoglycosides

D  penicillin G

E  synercid

A  disrupting membrane integrity

B  blocking transport out from the organism

C  coating the organism, preventing interaction with its environment

D  blocking transport into the organism

A  disinfection

B  antisepsis

C  decontamination

D  sterilization

E  degerming

A  batch pasteurization

B  flash pasteurization

C  ultra high temperature

D  pasteurization

A  plasmids

B  All of the choices are correct.

C  mitochondrial DNA

D  chromosomes

E  chloroplast DNA

A  genome

B  phenotype

C  chromosome

D  DNA

A  Deletion

B  Nonsense

C  Silent

D  Missense

E  Insertion

A  sporicidal time

B  None of the choices are correct

C  death phase point

D  thermal death point (TDP)

E  thermal death time (TDT)

A  translation

B  replication

C  mitosis

D  transcription

E  mutation

A  pyrimidine

B  protein

C  amino acid

D  purine

E  nucleotide

A  allergic reactions

B  nephrotoxicity

C  drug toxicity

D  mutation

E  superinfections

A  codon; anticodon

B  anticodon; codon

C  codon; DNA triplet

D  gene; complement

A  All of the choices are correct.

B  has uracil

C  is typically one strand of nucleotides

D  does not have thymine

E  has ribose

A  gene

B  phenotype

C  chromosome

D  genotype

A  Iodophor

B  3% hydrogen peroxide

C  Betadine (povidone-iodine)

D  Glutaraldehyde

E  Chlorhexidine

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

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

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

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

A  nonpolar covalent

B  peptide

C  sulfhydryl

D  hydrogen

A  sanitization

B  ionization

C  disinfection

D  antisepsis

A  Bactericide

B  Sporicide

C  Germicide

D  Fungicide