Exam 3

A  promoter

B  terminator

C  operator

D  structural locus

E  regulator

A  genetic engineering

B  gel electrophoresis

C  biotechnology

D  gene probes

E  recombinant DNA

A  All of the choices are correct

B  air

C  human tissues

D  medical instruments

E  liquids

A  sanitization

B  sterilization

C  antisepsis

D  degermation

E  disinfection

A  requires a template DNA strand

B  requires RNA polymerase

C  occurs before translation

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

E  occurs on a ribosome in the cytoplasm

A  adenine pairs with thymine

B  guanine pairs with uracil

C  cytosine and thymine are pyrimidines

D  they are only present in the form of purines

E  form pairs by hydrogen bonding

A  HIV

B  influenza A virus

C  hepatitis C virus

D  respiratory syncytial virus

E  herpes zoster virus

A  ribosomal RNA

B  messenger RNA

C  transfer RNA

D  primer RNA

E  ribozymes

A  allylamines

B  echinocandins

C  macrolide polyenes

D  azoles

A  E-test

B  Antibiogram

C  Kirby-Bauer

D  MIC

E  Therapeutic index (TI)

A  synthesizes RNA primer

B  removes primers

C  unzips DNA

D  adds bases to new DNA chain

A  MIC

B  therapeutic index (TI)

C  antibiogram

D  Kirby-Bauer

E  E-test

A  helminthic

B  protozoan

C  bacterial

D  fungal

E  viral

A  sporicidal time

B  death phase point

C  thermal death point (TDP)

D  thermal death time (TDT)

A  exon

B  intron

C  anticodon

D  codon

A  dissolve

B  bind

C  denature

D  activate

A  degermation

B  disinfection

C  sterilization

D  antisepsis

E  sanitization

A  synthesizes primer

B  removes primer

C  unzips the DNA helix

D  adds new bases and proofreads new DNA

E  joins Okazaki fragments

A  sulfa drugs

B  amphotericin B

C  metronidazole

D  nystatin

E  griseofulvin

A  Boiling

B  Sterilization

C  Disinfection

D  Radiation

E  Filtration

A  prebiotics

B  prophylaxis

C  lantibiotics

D  synergism

E  competitive inhibition

A  have resistance to the action of penicillinase

B  target the cell wall

C  are semisynthetic

D  have an expanded spectrum of activity

E  All of the choices are correct.

A  Is inherited

B  Are regulatory genes controlling gene expression

C  Are the expressed traits governed by the genes

D  Are genes coding for RNA

E  Are structural genes coding for proteins

A  bacteriostatic

B  None of the choices are correct

C  decontamination

D  bactericidal

E  sterilization

A  metronidazole

B  griseofulvin

C  sulfa drugs

D  amphotericin B

E  nystatin

A  sterilization

B  antisepsis

C  ionization

D  disinfection

E  sanitization

A  operator

B  intron

C  operon

D  exon

E  promoter

A  Silent

B  Missense

C  Point

D  Nonsense

E  Back

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  sanitization

B  degermation

C  disinfection

D  antisepsis

E  sterilization.

A  block folic acid synthesis

B  interfere with elongation of peptidoglycan

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

D  block peptidases that cross-link glycan molecules

E  damage cell membranes

A  isoniazid

B  vancomycin

C  penicillin G

D  aminoglycosides

E  synercid

A  blocking transport out from the organism

B  disrupting membrane integrity

C  coating the organism, preventing interaction with its environment

D  blocking transport into the organism

A  degerming

B  antisepsis

C  disinfection

D  decontamination

E  sterilization

A  flash pasteurization

B  batch pasteurization

C  ultra high temperature

D  pasteurization

A  mitochondrial DNA

B  chromosomes

C  plasmids

D  chloroplast DNA

E  All of the choices are correct.

A  chromosome

B  genome

C  phenotype

D  DNA

A  Nonsense

B  Silent

C  Insertion

D  Missense

E  Deletion

A  thermal death point (TDP)

B  thermal death time (TDT)

C  sporicidal time

D  death phase point

E  None of the choices are correct

A  replication

B  mutation

C  mitosis

D  transcription

E  translation

A  pyrimidine

B  purine

C  nucleotide

D  amino acid

E  protein

A  allergic reactions

B  nephrotoxicity

C  drug toxicity

D  superinfections

E  mutation

A  anticodon; codon

B  codon; anticodon

C  codon; DNA triplet

D  gene; complement

A  does not have thymine

B  is typically one strand of nucleotides

C  has ribose

D  has uracil

E  All of the choices are correct.

A  genotype

B  gene

C  chromosome

D  phenotype

A  Betadine (povidone-iodine)

B  Chlorhexidine

C  Iodophor

D  3% hydrogen peroxide

E  Glutaraldehyde

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

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

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

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

A  peptide

B  nonpolar covalent

C  sulfhydryl

D  hydrogen

A  disinfection

B  antisepsis

C  ionization

D  sanitization

A  Sporicide

B  Bactericide

C  Germicide

D  Fungicide