Exam 3

A  promoter

B  structural locus

C  terminator

D  operator

E  regulator

A  gel electrophoresis

B  recombinant DNA

C  genetic engineering

D  gene probes

E  biotechnology

A  human tissues

B  All of the choices are correct

C  medical instruments

D  air

E  liquids

A  sanitization

B  degermation

C  antisepsis

D  disinfection

E  sterilization

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

B  requires RNA polymerase

C  occurs before translation

D  requires a template DNA strand

E  occurs on a ribosome in the cytoplasm

A  form pairs by hydrogen bonding

B  they are only present in the form of purines

C  guanine pairs with uracil

D  adenine pairs with thymine

E  cytosine and thymine are pyrimidines

A  respiratory syncytial virus

B  influenza A virus

C  herpes zoster virus

D  HIV

E  hepatitis C virus

A  ribozymes

B  ribosomal RNA

C  primer RNA

D  transfer RNA

E  messenger RNA

A  allylamines

B  azoles

C  macrolide polyenes

D  echinocandins

A  MIC

B  E-test

C  Therapeutic index (TI)

D  Kirby-Bauer

E  Antibiogram

A  adds bases to new DNA chain

B  synthesizes RNA primer

C  removes primers

D  unzips DNA

A  MIC

B  antibiogram

C  Kirby-Bauer

D  E-test

E  therapeutic index (TI)

A  viral

B  protozoan

C  bacterial

D  helminthic

E  fungal

A  thermal death time (TDT)

B  thermal death point (TDP)

C  sporicidal time

D  death phase point

A  codon

B  anticodon

C  intron

D  exon

A  denature

B  activate

C  dissolve

D  bind

A  sanitization

B  degermation

C  sterilization

D  antisepsis

E  disinfection

A  removes primer

B  unzips the DNA helix

C  adds new bases and proofreads new DNA

D  joins Okazaki fragments

E  synthesizes primer

A  nystatin

B  amphotericin B

C  griseofulvin

D  sulfa drugs

E  metronidazole

A  Radiation

B  Boiling

C  Filtration

D  Disinfection

E  Sterilization

A  prebiotics

B  lantibiotics

C  synergism

D  competitive inhibition

E  prophylaxis

A  target the cell wall

B  All of the choices are correct.

C  are semisynthetic

D  have resistance to the action of penicillinase

E  have an expanded spectrum of activity

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  bactericidal

B  bacteriostatic

C  None of the choices are correct

D  sterilization

E  decontamination

A  amphotericin B

B  sulfa drugs

C  nystatin

D  metronidazole

E  griseofulvin

A  sterilization

B  sanitization

C  antisepsis

D  disinfection

E  ionization

A  operon

B  exon

C  intron

D  operator

E  promoter

A  Silent

B  Missense

C  Back

D  Point

E  Nonsense

A  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

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 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 made in the 5′-3′ direction by DNA polymerase III, whereas the lagging strand is synthesized in the opposite direction, 3′-5′

A  sanitization

B  degermation

C  antisepsis

D  disinfection

E  sterilization.

A  block folic acid synthesis

B  block peptidases that cross-link glycan molecules

C  interfere with elongation of peptidoglycan

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

E  damage cell membranes

A  synercid

B  aminoglycosides

C  penicillin G

D  isoniazid

E  vancomycin

A  disrupting membrane integrity

B  blocking transport into the organism

C  blocking transport out from the organism

D  coating the organism, preventing interaction with its environment

A  decontamination

B  degerming

C  antisepsis

D  disinfection

E  sterilization

A  flash pasteurization

B  ultra high temperature

C  pasteurization

D  batch pasteurization

A  plasmids

B  mitochondrial DNA

C  chromosomes

D  All of the choices are correct.

E  chloroplast DNA

A  phenotype

B  DNA

C  genome

D  chromosome

A  Insertion

B  Nonsense

C  Missense

D  Silent

E  Deletion

A  None of the choices are correct

B  death phase point

C  sporicidal time

D  thermal death point (TDP)

E  thermal death time (TDT)

A  transcription

B  replication

C  translation

D  mutation

E  mitosis

A  nucleotide

B  purine

C  pyrimidine

D  protein

E  amino acid

A  allergic reactions

B  mutation

C  nephrotoxicity

D  superinfections

E  drug toxicity

A  gene; complement

B  anticodon; codon

C  codon; DNA triplet

D  codon; anticodon

A  has ribose

B  has uracil

C  All of the choices are correct.

D  is typically one strand of nucleotides

E  does not have thymine

A  chromosome

B  phenotype

C  genotype

D  gene

A  Betadine (povidone-iodine)

B  Iodophor

C  Glutaraldehyde

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

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

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

A  nonpolar covalent

B  sulfhydryl

C  peptide

D  hydrogen

A  disinfection

B  ionization

C  sanitization

D  antisepsis

A  Fungicide

B  Germicide

C  Bactericide

D  Sporicide