Exam 3

A  promoter

B  terminator

C  regulator

D  operator

E  structural locus

A  biotechnology

B  gel electrophoresis

C  recombinant DNA

D  gene probes

E  genetic engineering

A  All of the choices are correct

B  human tissues

C  medical instruments

D  liquids

E  air

A  sterilization

B  sanitization

C  antisepsis

D  disinfection

E  degermation

A  occurs on a ribosome in the cytoplasm

B  requires a template DNA strand

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

D  requires RNA polymerase

E  occurs before translation

A  cytosine and thymine are pyrimidines

B  adenine pairs with thymine

C  form pairs by hydrogen bonding

D  guanine pairs with uracil

E  they are only present in the form of purines

A  influenza A virus

B  herpes zoster virus

C  hepatitis C virus

D  HIV

E  respiratory syncytial virus

A  transfer RNA

B  ribozymes

C  ribosomal RNA

D  primer RNA

E  messenger RNA

A  azoles

B  echinocandins

C  allylamines

D  macrolide polyenes

A  Therapeutic index (TI)

B  E-test

C  Kirby-Bauer

D  Antibiogram

E  MIC

A  synthesizes RNA primer

B  removes primers

C  adds bases to new DNA chain

D  unzips DNA

A  MIC

B  antibiogram

C  therapeutic index (TI)

D  Kirby-Bauer

E  E-test

A  helminthic

B  protozoan

C  fungal

D  viral

E  bacterial

A  death phase point

B  sporicidal time

C  thermal death time (TDT)

D  thermal death point (TDP)

A  anticodon

B  exon

C  codon

D  intron

A  denature

B  dissolve

C  bind

D  activate

A  sanitization

B  sterilization

C  degermation

D  disinfection

E  antisepsis

A  unzips the DNA helix

B  removes primer

C  synthesizes primer

D  adds new bases and proofreads new DNA

E  joins Okazaki fragments

A  amphotericin B

B  nystatin

C  sulfa drugs

D  griseofulvin

E  metronidazole

A  Boiling

B  Sterilization

C  Filtration

D  Disinfection

E  Radiation

A  prebiotics

B  lantibiotics

C  synergism

D  competitive inhibition

E  prophylaxis

A  have resistance to the action of penicillinase

B  target the cell wall

C  are semisynthetic

D  All of the choices are correct.

E  have an expanded spectrum of activity

A  Are structural genes coding for proteins

B  Are genes coding for RNA

C  Are the expressed traits governed by the genes

D  Are regulatory genes controlling gene expression

E  Is inherited

A  None of the choices are correct

B  bacteriostatic

C  sterilization

D  bactericidal

E  decontamination

A  nystatin

B  amphotericin B

C  metronidazole

D  griseofulvin

E  sulfa drugs

A  antisepsis

B  sanitization

C  sterilization

D  disinfection

E  ionization

A  operator

B  operon

C  intron

D  exon

E  promoter

A  Point

B  Missense

C  Silent

D  Nonsense

E  Back

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  sterilization.

B  disinfection

C  antisepsis

D  degermation

E  sanitization

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

B  damage cell membranes

C  block folic acid synthesis

D  interfere with elongation of peptidoglycan

E  block peptidases that cross-link glycan molecules

A  isoniazid

B  vancomycin

C  aminoglycosides

D  penicillin G

E  synercid

A  disrupting membrane integrity

B  coating the organism, preventing interaction with its environment

C  blocking transport into the organism

D  blocking transport out from the organism

A  decontamination

B  degerming

C  sterilization

D  disinfection

E  antisepsis

A  batch pasteurization

B  flash 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  phenotype

B  chromosome

C  genome

D  DNA

A  Deletion

B  Missense

C  Insertion

D  Silent

E  Nonsense

A  thermal death point (TDP)

B  None of the choices are correct

C  death phase point

D  thermal death time (TDT)

E  sporicidal time

A  transcription

B  translation

C  mutation

D  mitosis

E  replication

A  protein

B  nucleotide

C  amino acid

D  purine

E  pyrimidine

A  superinfections

B  drug toxicity

C  allergic reactions

D  mutation

E  nephrotoxicity

A  anticodon; codon

B  codon; anticodon

C  gene; complement

D  codon; DNA triplet

A  has uracil

B  All of the choices are correct.

C  does not have thymine

D  is typically one strand of nucleotides

E  has ribose

A  gene

B  genotype

C  phenotype

D  chromosome

A  Glutaraldehyde

B  Iodophor

C  Betadine (povidone-iodine)

D  Chlorhexidine

E  3% hydrogen peroxide

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  nonpolar covalent

B  sulfhydryl

C  peptide

D  hydrogen

A  antisepsis

B  sanitization

C  disinfection

D  ionization

A  Bactericide

B  Sporicide

C  Germicide

D  Fungicide