Exam 3

A  regulator

B  promoter

C  structural locus

D  operator

E  terminator

A  biotechnology

B  genetic engineering

C  gel electrophoresis

D  gene probes

E  recombinant DNA

A  air

B  human tissues

C  All of the choices are correct

D  medical instruments

E  liquids

A  antisepsis

B  sterilization

C  disinfection

D  degermation

E  sanitization

A  requires a template DNA strand

B  occurs on a ribosome in the cytoplasm

C  occurs before translation

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

E  requires RNA polymerase

A  cytosine and thymine are pyrimidines

B  adenine pairs with thymine

C  they are only present in the form of purines

D  form pairs by hydrogen bonding

E  guanine pairs with uracil

A  HIV

B  hepatitis C virus

C  influenza A virus

D  herpes zoster virus

E  respiratory syncytial virus

A  ribozymes

B  primer RNA

C  ribosomal RNA

D  messenger RNA

E  transfer RNA

A  allylamines

B  azoles

C  macrolide polyenes

D  echinocandins

A  Antibiogram

B  MIC

C  E-test

D  Kirby-Bauer

E  Therapeutic index (TI)

A  removes primers

B  unzips DNA

C  adds bases to new DNA chain

D  synthesizes RNA primer

A  Kirby-Bauer

B  therapeutic index (TI)

C  E-test

D  MIC

E  antibiogram

A  viral

B  protozoan

C  bacterial

D  helminthic

E  fungal

A  thermal death time (TDT)

B  sporicidal time

C  thermal death point (TDP)

D  death phase point

A  intron

B  codon

C  exon

D  anticodon

A  bind

B  dissolve

C  denature

D  activate

A  sterilization

B  degermation

C  antisepsis

D  sanitization

E  disinfection

A  unzips the DNA helix

B  removes primer

C  synthesizes primer

D  adds new bases and proofreads new DNA

E  joins Okazaki fragments

A  metronidazole

B  sulfa drugs

C  griseofulvin

D  nystatin

E  amphotericin B

A  Boiling

B  Disinfection

C  Filtration

D  Radiation

E  Sterilization

A  competitive inhibition

B  prebiotics

C  lantibiotics

D  synergism

E  prophylaxis

A  target the cell wall

B  have an expanded spectrum of activity

C  have resistance to the action of penicillinase

D  are semisynthetic

E  All of the choices are correct.

A  Is inherited

B  Are the expressed traits governed by the genes

C  Are structural genes coding for proteins

D  Are genes coding for RNA

E  Are regulatory genes controlling gene expression

A  sterilization

B  decontamination

C  bactericidal

D  None of the choices are correct

E  bacteriostatic

A  amphotericin B

B  sulfa drugs

C  griseofulvin

D  metronidazole

E  nystatin

A  disinfection

B  sterilization

C  antisepsis

D  sanitization

E  ionization

A  exon

B  operator

C  promoter

D  intron

E  operon

A  Silent

B  Nonsense

C  Back

D  Missense

E  Point

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  disinfection

B  antisepsis

C  sanitization

D  degermation

E  sterilization.

A  interfere with elongation of peptidoglycan

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

C  damage cell membranes

D  block folic acid synthesis

E  block peptidases that cross-link glycan molecules

A  penicillin G

B  synercid

C  aminoglycosides

D  isoniazid

E  vancomycin

A  disrupting membrane integrity

B  coating the organism, preventing interaction with its environment

C  blocking transport out from the organism

D  blocking transport into the organism

A  antisepsis

B  sterilization

C  disinfection

D  degerming

E  decontamination

A  flash pasteurization

B  ultra high temperature

C  pasteurization

D  batch pasteurization

A  chloroplast DNA

B  plasmids

C  chromosomes

D  mitochondrial DNA

E  All of the choices are correct.

A  chromosome

B  genome

C  phenotype

D  DNA

A  Deletion

B  Insertion

C  Missense

D  Nonsense

E  Silent

A  sporicidal time

B  thermal death point (TDP)

C  thermal death time (TDT)

D  death phase point

E  None of the choices are correct

A  replication

B  mutation

C  translation

D  transcription

E  mitosis

A  purine

B  protein

C  amino acid

D  nucleotide

E  pyrimidine

A  mutation

B  nephrotoxicity

C  allergic reactions

D  drug toxicity

E  superinfections

A  codon; DNA triplet

B  gene; complement

C  anticodon; codon

D  codon; anticodon

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  genotype

B  chromosome

C  gene

D  phenotype

A  Glutaraldehyde

B  Betadine (povidone-iodine)

C  Iodophor

D  Chlorhexidine

E  3% hydrogen peroxide

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

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

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  peptide

B  nonpolar covalent

C  hydrogen

D  sulfhydryl

A  ionization

B  disinfection

C  antisepsis

D  sanitization

A  Germicide

B  Sporicide

C  Fungicide

D  Bactericide