Exam 3

A  terminator

B  structural locus

C  operator

D  promoter

E  regulator

A  gel electrophoresis

B  biotechnology

C  genetic engineering

D  recombinant DNA

E  gene probes

A  human tissues

B  liquids

C  medical instruments

D  All of the choices are correct

E  air

A  antisepsis

B  disinfection

C  sterilization

D  degermation

E  sanitization

A  occurs before translation

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

C  requires a template DNA strand

D  occurs on a ribosome in the cytoplasm

E  requires RNA polymerase

A  form pairs by hydrogen bonding

B  adenine pairs with thymine

C  they are only present in the form of purines

D  guanine pairs with uracil

E  cytosine and thymine are pyrimidines

A  influenza A virus

B  herpes zoster virus

C  respiratory syncytial virus

D  hepatitis C virus

E  HIV

A  messenger RNA

B  primer RNA

C  ribozymes

D  ribosomal RNA

E  transfer RNA

A  azoles

B  echinocandins

C  macrolide polyenes

D  allylamines

A  E-test

B  Kirby-Bauer

C  Antibiogram

D  MIC

E  Therapeutic index (TI)

A  synthesizes RNA primer

B  unzips DNA

C  removes primers

D  adds bases to new DNA chain

A  MIC

B  antibiogram

C  E-test

D  therapeutic index (TI)

E  Kirby-Bauer

A  protozoan

B  bacterial

C  viral

D  helminthic

E  fungal

A  thermal death point (TDP)

B  sporicidal time

C  thermal death time (TDT)

D  death phase point

A  codon

B  anticodon

C  intron

D  exon

A  denature

B  bind

C  dissolve

D  activate

A  disinfection

B  degermation

C  antisepsis

D  sterilization

E  sanitization

A  adds new bases and proofreads new DNA

B  synthesizes primer

C  removes primer

D  unzips the DNA helix

E  joins Okazaki fragments

A  amphotericin B

B  griseofulvin

C  sulfa drugs

D  nystatin

E  metronidazole

A  Radiation

B  Filtration

C  Boiling

D  Disinfection

E  Sterilization

A  prebiotics

B  competitive inhibition

C  prophylaxis

D  lantibiotics

E  synergism

A  All of the choices are correct.

B  are semisynthetic

C  have resistance to the action of penicillinase

D  have an expanded spectrum of activity

E  target the cell wall

A  Are structural genes coding for proteins

B  Are regulatory genes controlling gene expression

C  Are genes coding for RNA

D  Are the expressed traits governed by the genes

E  Is inherited

A  bactericidal

B  decontamination

C  sterilization

D  None of the choices are correct

E  bacteriostatic

A  griseofulvin

B  metronidazole

C  nystatin

D  amphotericin B

E  sulfa drugs

A  sanitization

B  ionization

C  disinfection

D  sterilization

E  antisepsis

A  exon

B  operon

C  intron

D  operator

E  promoter

A  Silent

B  Back

C  Nonsense

D  Missense

E  Point

A  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

B  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

C  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

D  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′

A  antisepsis

B  degermation

C  disinfection

D  sterilization.

E  sanitization

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

B  block peptidases that cross-link glycan molecules

C  damage cell membranes

D  interfere with elongation of peptidoglycan

E  block folic acid synthesis

A  isoniazid

B  aminoglycosides

C  vancomycin

D  synercid

E  penicillin G

A  coating the organism, preventing interaction with its environment

B  disrupting membrane integrity

C  blocking transport into the organism

D  blocking transport out from the organism

A  disinfection

B  degerming

C  sterilization

D  decontamination

E  antisepsis

A  flash pasteurization

B  pasteurization

C  ultra high temperature

D  batch pasteurization

A  chloroplast DNA

B  plasmids

C  mitochondrial DNA

D  chromosomes

E  All of the choices are correct.

A  phenotype

B  chromosome

C  DNA

D  genome

A  Nonsense

B  Insertion

C  Missense

D  Silent

E  Deletion

A  death phase point

B  thermal death point (TDP)

C  None of the choices are correct

D  sporicidal time

E  thermal death time (TDT)

A  mitosis

B  mutation

C  translation

D  transcription

E  replication

A  nucleotide

B  pyrimidine

C  purine

D  protein

E  amino acid

A  mutation

B  superinfections

C  nephrotoxicity

D  allergic reactions

E  drug toxicity

A  codon; anticodon

B  anticodon; codon

C  codon; DNA triplet

D  gene; complement

A  has ribose

B  is typically one strand of nucleotides

C  does not have thymine

D  has uracil

E  All of the choices are correct.

A  phenotype

B  genotype

C  gene

D  chromosome

A  Betadine (povidone-iodine)

B  Glutaraldehyde

C  Chlorhexidine

D  Iodophor

E  3% hydrogen peroxide

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

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

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  sulfhydryl

C  hydrogen

D  peptide

A  antisepsis

B  disinfection

C  sanitization

D  ionization

A  Sporicide

B  Germicide

C  Bactericide

D  Fungicide