Exam 3

A  regulator

B  promoter

C  operator

D  structural locus

E  terminator

A  gene probes

B  recombinant DNA

C  biotechnology

D  gel electrophoresis

E  genetic engineering

A  human tissues

B  liquids

C  All of the choices are correct

D  air

E  medical instruments

A  disinfection

B  sterilization

C  antisepsis

D  degermation

E  sanitization

A  occurs on a ribosome in the cytoplasm

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

C  occurs before translation

D  requires RNA polymerase

E  requires a template DNA strand

A  they are only present in the form of purines

B  cytosine and thymine are pyrimidines

C  guanine pairs with uracil

D  adenine pairs with thymine

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  primer RNA

B  ribosomal RNA

C  ribozymes

D  transfer RNA

E  messenger RNA

A  macrolide polyenes

B  allylamines

C  azoles

D  echinocandins

A  E-test

B  Antibiogram

C  MIC

D  Kirby-Bauer

E  Therapeutic index (TI)

A  unzips DNA

B  removes primers

C  adds bases to new DNA chain

D  synthesizes RNA primer

A  therapeutic index (TI)

B  antibiogram

C  MIC

D  Kirby-Bauer

E  E-test

A  fungal

B  protozoan

C  bacterial

D  viral

E  helminthic

A  thermal death time (TDT)

B  death phase point

C  sporicidal time

D  thermal death point (TDP)

A  intron

B  anticodon

C  exon

D  codon

A  dissolve

B  activate

C  bind

D  denature

A  degermation

B  disinfection

C  antisepsis

D  sterilization

E  sanitization

A  synthesizes primer

B  joins Okazaki fragments

C  unzips the DNA helix

D  removes primer

E  adds new bases and proofreads new DNA

A  sulfa drugs

B  amphotericin B

C  metronidazole

D  griseofulvin

E  nystatin

A  Radiation

B  Disinfection

C  Sterilization

D  Filtration

E  Boiling

A  competitive inhibition

B  lantibiotics

C  synergism

D  prophylaxis

E  prebiotics

A  All of the choices are correct.

B  have an expanded spectrum of activity

C  are semisynthetic

D  target the cell wall

E  have resistance to the action of penicillinase

A  Are regulatory genes controlling gene expression

B  Is inherited

C  Are genes coding for RNA

D  Are the expressed traits governed by the genes

E  Are structural genes coding for proteins

A  sterilization

B  None of the choices are correct

C  decontamination

D  bacteriostatic

E  bactericidal

A  griseofulvin

B  amphotericin B

C  metronidazole

D  nystatin

E  sulfa drugs

A  ionization

B  disinfection

C  antisepsis

D  sanitization

E  sterilization

A  operator

B  exon

C  promoter

D  operon

E  intron

A  Silent

B  Missense

C  Point

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 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 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  disinfection

C  degermation

D  sanitization

E  sterilization.

A  block folic acid synthesis

B  interfere with elongation of peptidoglycan

C  damage cell membranes

D  block peptidases that cross-link glycan molecules

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

A  isoniazid

B  penicillin G

C  synercid

D  vancomycin

E  aminoglycosides

A  blocking transport out from the organism

B  disrupting membrane integrity

C  blocking transport into the organism

D  coating the organism, preventing interaction with its environment

A  decontamination

B  degerming

C  sterilization

D  disinfection

E  antisepsis

A  ultra high temperature

B  flash pasteurization

C  pasteurization

D  batch pasteurization

A  chloroplast DNA

B  All of the choices are correct.

C  plasmids

D  chromosomes

E  mitochondrial DNA

A  phenotype

B  DNA

C  genome

D  chromosome

A  Nonsense

B  Deletion

C  Insertion

D  Missense

E  Silent

A  thermal death time (TDT)

B  thermal death point (TDP)

C  death phase point

D  None of the choices are correct

E  sporicidal time

A  translation

B  mitosis

C  replication

D  mutation

E  transcription

A  protein

B  pyrimidine

C  amino acid

D  nucleotide

E  purine

A  allergic reactions

B  superinfections

C  drug toxicity

D  nephrotoxicity

E  mutation

A  codon; DNA triplet

B  gene; complement

C  anticodon; codon

D  codon; anticodon

A  does not have thymine

B  has uracil

C  is typically one strand of nucleotides

D  All of the choices are correct.

E  has ribose

A  phenotype

B  chromosome

C  genotype

D  gene

A  Iodophor

B  3% hydrogen peroxide

C  Chlorhexidine

D  Glutaraldehyde

E  Betadine (povidone-iodine)

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

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

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

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

A  sulfhydryl

B  hydrogen

C  peptide

D  nonpolar covalent

A  antisepsis

B  disinfection

C  ionization

D  sanitization

A  Fungicide

B  Sporicide

C  Bactericide

D  Germicide