Exam 3

A  structural locus

B  terminator

C  promoter

D  operator

E  regulator

A  recombinant DNA

B  gene probes

C  biotechnology

D  genetic engineering

E  gel electrophoresis

A  human tissues

B  air

C  All of the choices are correct

D  medical instruments

E  liquids

A  sanitization

B  sterilization

C  degermation

D  antisepsis

E  disinfection

A  occurs on a ribosome in the cytoplasm

B  requires RNA polymerase

C  requires a template DNA strand

D  occurs before translation

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

A  adenine pairs with thymine

B  guanine pairs with uracil

C  cytosine and thymine are pyrimidines

D  form pairs by hydrogen bonding

E  they are only present in the form of purines

A  respiratory syncytial virus

B  influenza A virus

C  hepatitis C virus

D  HIV

E  herpes zoster virus

A  primer RNA

B  messenger RNA

C  transfer RNA

D  ribozymes

E  ribosomal RNA

A  allylamines

B  azoles

C  macrolide polyenes

D  echinocandins

A  Antibiogram

B  Kirby-Bauer

C  E-test

D  MIC

E  Therapeutic index (TI)

A  unzips DNA

B  synthesizes RNA primer

C  removes primers

D  adds bases to new DNA chain

A  antibiogram

B  Kirby-Bauer

C  MIC

D  E-test

E  therapeutic index (TI)

A  fungal

B  bacterial

C  protozoan

D  viral

E  helminthic

A  death phase point

B  sporicidal time

C  thermal death point (TDP)

D  thermal death time (TDT)

A  intron

B  anticodon

C  codon

D  exon

A  dissolve

B  bind

C  denature

D  activate

A  antisepsis

B  sanitization

C  degermation

D  disinfection

E  sterilization

A  removes primer

B  unzips the DNA helix

C  synthesizes primer

D  adds new bases and proofreads new DNA

E  joins Okazaki fragments

A  griseofulvin

B  nystatin

C  amphotericin B

D  metronidazole

E  sulfa drugs

A  Sterilization

B  Disinfection

C  Filtration

D  Boiling

E  Radiation

A  prebiotics

B  competitive inhibition

C  lantibiotics

D  prophylaxis

E  synergism

A  are semisynthetic

B  have resistance to the action of penicillinase

C  have an expanded spectrum of activity

D  All of the choices are correct.

E  target the cell wall

A  Are the expressed traits governed by the genes

B  Are genes coding for RNA

C  Are structural genes coding for proteins

D  Are regulatory genes controlling gene expression

E  Is inherited

A  bactericidal

B  None of the choices are correct

C  decontamination

D  sterilization

E  bacteriostatic

A  nystatin

B  metronidazole

C  griseofulvin

D  sulfa drugs

E  amphotericin B

A  sanitization

B  disinfection

C  ionization

D  sterilization

E  antisepsis

A  intron

B  exon

C  operon

D  operator

E  promoter

A  Silent

B  Missense

C  Nonsense

D  Point

E  Back

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

D  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

A  antisepsis

B  sterilization.

C  degermation

D  disinfection

E  sanitization

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

B  block peptidases that cross-link glycan molecules

C  interfere with elongation of peptidoglycan

D  damage cell membranes

E  block folic acid synthesis

A  synercid

B  penicillin G

C  isoniazid

D  vancomycin

E  aminoglycosides

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  decontamination

B  sterilization

C  antisepsis

D  degerming

E  disinfection

A  batch pasteurization

B  pasteurization

C  flash pasteurization

D  ultra high temperature

A  mitochondrial DNA

B  chromosomes

C  All of the choices are correct.

D  plasmids

E  chloroplast DNA

A  chromosome

B  phenotype

C  genome

D  DNA

A  Nonsense

B  Silent

C  Insertion

D  Deletion

E  Missense

A  thermal death point (TDP)

B  None of the choices are correct

C  death phase point

D  thermal death time (TDT)

E  sporicidal time

A  replication

B  translation

C  transcription

D  mutation

E  mitosis

A  amino acid

B  pyrimidine

C  nucleotide

D  protein

E  purine

A  drug toxicity

B  superinfections

C  mutation

D  allergic reactions

E  nephrotoxicity

A  gene; complement

B  codon; DNA triplet

C  anticodon; codon

D  codon; anticodon

A  does not have thymine

B  has uracil

C  is typically one strand of nucleotides

D  has ribose

E  All of the choices are correct.

A  gene

B  genotype

C  chromosome

D  phenotype

A  Glutaraldehyde

B  Chlorhexidine

C  Betadine (povidone-iodine)

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

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

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

A  sulfhydryl

B  nonpolar covalent

C  hydrogen

D  peptide

A  ionization

B  antisepsis

C  sanitization

D  disinfection

A  Bactericide

B  Germicide

C  Fungicide

D  Sporicide