Exam 3

A  regulator

B  promoter

C  terminator

D  operator

E  structural locus

A  biotechnology

B  recombinant DNA

C  genetic engineering

D  gene probes

E  gel electrophoresis

A  liquids

B  air

C  human tissues

D  All of the choices are correct

E  medical instruments

A  sterilization

B  antisepsis

C  sanitization

D  disinfection

E  degermation

A  requires a template DNA strand

B  requires RNA polymerase

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

D  occurs before translation

E  occurs on a ribosome in the cytoplasm

A  adenine pairs with thymine

B  form pairs by hydrogen bonding

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  respiratory syncytial virus

C  herpes zoster virus

D  hepatitis C virus

E  HIV

A  messenger RNA

B  ribozymes

C  primer RNA

D  ribosomal RNA

E  transfer RNA

A  echinocandins

B  azoles

C  allylamines

D  macrolide polyenes

A  Therapeutic index (TI)

B  MIC

C  E-test

D  Kirby-Bauer

E  Antibiogram

A  unzips DNA

B  adds bases to new DNA chain

C  synthesizes RNA primer

D  removes primers

A  E-test

B  Kirby-Bauer

C  MIC

D  antibiogram

E  therapeutic index (TI)

A  fungal

B  bacterial

C  helminthic

D  protozoan

E  viral

A  thermal death time (TDT)

B  death phase point

C  sporicidal time

D  thermal death point (TDP)

A  exon

B  intron

C  codon

D  anticodon

A  bind

B  denature

C  dissolve

D  activate

A  degermation

B  sanitization

C  antisepsis

D  sterilization

E  disinfection

A  joins Okazaki fragments

B  unzips the DNA helix

C  synthesizes primer

D  removes primer

E  adds new bases and proofreads new DNA

A  amphotericin B

B  nystatin

C  sulfa drugs

D  griseofulvin

E  metronidazole

A  Boiling

B  Filtration

C  Radiation

D  Sterilization

E  Disinfection

A  synergism

B  lantibiotics

C  competitive inhibition

D  prophylaxis

E  prebiotics

A  target the cell wall

B  have an expanded spectrum of activity

C  All of the choices are correct.

D  have resistance to the action of penicillinase

E  are semisynthetic

A  Is inherited

B  Are structural genes coding for proteins

C  Are genes coding for RNA

D  Are the expressed traits governed by the genes

E  Are regulatory genes controlling gene expression

A  sterilization

B  bactericidal

C  bacteriostatic

D  None of the choices are correct

E  decontamination

A  nystatin

B  griseofulvin

C  amphotericin B

D  metronidazole

E  sulfa drugs

A  ionization

B  disinfection

C  sterilization

D  antisepsis

E  sanitization

A  exon

B  intron

C  operator

D  operon

E  promoter

A  Silent

B  Point

C  Back

D  Nonsense

E  Missense

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  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 away from the fork and is made in short segments called Okazaki fragments whereas the lagging strand extends continuously toward the replication fork

A  antisepsis

B  sanitization

C  disinfection

D  sterilization.

E  degermation

A  interfere with elongation of peptidoglycan

B  block folic acid synthesis

C  block peptidases that cross-link glycan molecules

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

E  damage cell membranes

A  aminoglycosides

B  isoniazid

C  vancomycin

D  penicillin G

E  synercid

A  coating the organism, preventing interaction with its environment

B  blocking transport out from the organism

C  disrupting membrane integrity

D  blocking transport into the organism

A  antisepsis

B  sterilization

C  decontamination

D  degerming

E  disinfection

A  ultra high temperature

B  flash pasteurization

C  pasteurization

D  batch pasteurization

A  chromosomes

B  chloroplast DNA

C  All of the choices are correct.

D  mitochondrial DNA

E  plasmids

A  genome

B  chromosome

C  phenotype

D  DNA

A  Insertion

B  Silent

C  Nonsense

D  Deletion

E  Missense

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  transcription

B  mitosis

C  translation

D  mutation

E  replication

A  pyrimidine

B  nucleotide

C  purine

D  amino acid

E  protein

A  allergic reactions

B  drug toxicity

C  superinfections

D  mutation

E  nephrotoxicity

A  anticodon; codon

B  codon; anticodon

C  codon; DNA triplet

D  gene; complement

A  has ribose

B  has uracil

C  does not have thymine

D  All of the choices are correct.

E  is typically one strand of nucleotides

A  gene

B  genotype

C  phenotype

D  chromosome

A  Iodophor

B  3% hydrogen peroxide

C  Glutaraldehyde

D  Betadine (povidone-iodine)

E  Chlorhexidine

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  sulfhydryl

B  hydrogen

C  peptide

D  nonpolar covalent

A  antisepsis

B  sanitization

C  disinfection

D  ionization

A  Bactericide

B  Germicide

C  Fungicide

D  Sporicide