Exam 3

A  regulator

B  structural locus

C  promoter

D  operator

E  terminator

A  recombinant DNA

B  genetic engineering

C  gene probes

D  biotechnology

E  gel electrophoresis

A  liquids

B  All of the choices are correct

C  medical instruments

D  human tissues

E  air

A  disinfection

B  degermation

C  sanitization

D  sterilization

E  antisepsis

A  occurs before translation

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

C  requires RNA polymerase

D  requires a template DNA strand

E  occurs on a ribosome in the cytoplasm

A  form pairs by hydrogen bonding

B  cytosine and thymine are pyrimidines

C  guanine pairs with uracil

D  adenine pairs with thymine

E  they are only present in the form of purines

A  herpes zoster virus

B  hepatitis C virus

C  influenza A virus

D  respiratory syncytial virus

E  HIV

A  ribosomal RNA

B  primer RNA

C  ribozymes

D  messenger RNA

E  transfer RNA

A  azoles

B  macrolide polyenes

C  echinocandins

D  allylamines

A  Kirby-Bauer

B  E-test

C  Antibiogram

D  Therapeutic index (TI)

E  MIC

A  adds bases to new DNA chain

B  removes primers

C  unzips DNA

D  synthesizes RNA primer

A  antibiogram

B  therapeutic index (TI)

C  E-test

D  MIC

E  Kirby-Bauer

A  bacterial

B  helminthic

C  viral

D  fungal

E  protozoan

A  thermal death point (TDP)

B  death phase point

C  sporicidal time

D  thermal death time (TDT)

A  codon

B  exon

C  intron

D  anticodon

A  dissolve

B  activate

C  denature

D  bind

A  antisepsis

B  sanitization

C  disinfection

D  degermation

E  sterilization

A  adds new bases and proofreads new DNA

B  synthesizes primer

C  removes primer

D  joins Okazaki fragments

E  unzips the DNA helix

A  amphotericin B

B  griseofulvin

C  sulfa drugs

D  nystatin

E  metronidazole

A  Filtration

B  Disinfection

C  Boiling

D  Sterilization

E  Radiation

A  lantibiotics

B  competitive inhibition

C  prebiotics

D  prophylaxis

E  synergism

A  are semisynthetic

B  have resistance to the action of penicillinase

C  have an expanded spectrum of activity

D  target the cell wall

E  All of the choices are correct.

A  Are structural genes coding for proteins

B  Are regulatory genes controlling gene expression

C  Are the expressed traits governed by the genes

D  Is inherited

E  Are genes coding for RNA

A  decontamination

B  sterilization

C  None of the choices are correct

D  bactericidal

E  bacteriostatic

A  sulfa drugs

B  metronidazole

C  nystatin

D  amphotericin B

E  griseofulvin

A  sterilization

B  ionization

C  sanitization

D  antisepsis

E  disinfection

A  operon

B  promoter

C  exon

D  operator

E  intron

A  Nonsense

B  Missense

C  Point

D  Silent

E  Back

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  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  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

A  disinfection

B  sterilization.

C  sanitization

D  antisepsis

E  degermation

A  block folic acid synthesis

B  damage cell membranes

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

D  block peptidases that cross-link glycan molecules

E  interfere with elongation of peptidoglycan

A  synercid

B  isoniazid

C  aminoglycosides

D  penicillin G

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  degerming

B  antisepsis

C  decontamination

D  disinfection

E  sterilization

A  flash pasteurization

B  ultra high temperature

C  batch pasteurization

D  pasteurization

A  chromosomes

B  All of the choices are correct.

C  plasmids

D  mitochondrial DNA

E  chloroplast DNA

A  phenotype

B  DNA

C  genome

D  chromosome

A  Deletion

B  Missense

C  Nonsense

D  Insertion

E  Silent

A  thermal death point (TDP)

B  None of the choices are correct

C  sporicidal time

D  thermal death time (TDT)

E  death phase point

A  replication

B  mutation

C  transcription

D  translation

E  mitosis

A  purine

B  amino acid

C  protein

D  nucleotide

E  pyrimidine

A  superinfections

B  allergic reactions

C  drug toxicity

D  nephrotoxicity

E  mutation

A  codon; anticodon

B  codon; DNA triplet

C  anticodon; codon

D  gene; complement

A  does not have thymine

B  All of the choices are correct.

C  is typically one strand of nucleotides

D  has uracil

E  has ribose

A  gene

B  genotype

C  chromosome

D  phenotype

A  Betadine (povidone-iodine)

B  Glutaraldehyde

C  Chlorhexidine

D  3% hydrogen peroxide

E  Iodophor

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

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

A  peptide

B  nonpolar covalent

C  hydrogen

D  sulfhydryl

A  ionization

B  sanitization

C  disinfection

D  antisepsis

A  Sporicide

B  Bactericide

C  Fungicide

D  Germicide