MCB 100 EXAM 2 QUESTIONS AND CORRECT
Operon c- cCORRECT cANS✔✔A cgroup cof cgenes cthat care cphysically cnext cto ceach cother con cthe
cas ca cunit.
Structural cGene c- cCORRECT cANS✔✔A csequence cof cDNA cthat cencodes cthe cinformation cneed
ca cprotein
Regulatory cGene c- cCORRECT cANS✔✔A csequence cof cDNA cencoding cinformation cneeded cto c
cprotein cthat cis cinvolved cin ccontrolling cthe cexpression cof cother cgenes.
Promoter c- cCORRECT cANS✔✔A csequence cof cDNA cthat cacts cas cthe csite cwhere cRNA cpolyme
ctranscription.
Regulatory cFactor c- cCORRECT cANS✔✔A cprotein cthat cbinds cto ca cspecific csequence cof cnucleo
cand ccontrols cthe ctranscription cof cnearby cgenes.
Operator c- cCORRECT cANS✔✔A csequence cof cDNA cwhere ca cprotein ccan cbind cand ccontrol cthe
cgenes.
Origin c- cCORRECT cANS✔✔A csequence cof cDNA cthat ctells cDNA cpolymerase cwhere cto cstart cth
plasmid c- cCORRECT cANS✔✔A csmall ccircular cring cof cDNA cthat ccarries cauxiliary cgenes cin cbac
chromosome c- cCORRECT cANS✔✔In cbacteria, ca clarge ccircular cring cof cDNA cthat cconstitutes cth
cmaterial.
transformation c- cCORRECT cANS✔✔A cbacterial ccell ctakes cup cnaked cDNA cfrom cthe cenvironme
cacquired.
transduction c- cCORRECT cANS✔✔A cbacterial ccell cis cinfected cby ca cphage cparticle cthat ccontain
transposon c- cCORRECT cANS✔✔A csegment cof cDNA cthat ccan cbe cduplicated cand cmoved cfrom
cbacterium's cgenome.
conjugation c- cCORRECT cANS✔✔DNA cmoves cfrom ca cdonor cbacterial ccell cto ca crecipient cthrou
cphysical ccontact.
True c- cCORRECT cANS✔✔Refrigeration ctends cto cbe cbacteriostatic crather cthan cbacteriocidal. c
Protozoa ctend cto cbe cmore cresistant cto cantimicrobial cagents cin cthe ccyst cform cthan cin cthe cactiv
cemit cultraviolet clight cand ccan ccause csunburns cand cdamage cto cunshielded ceyes. c
cThe cefficiency cof can cantimicrobial ctreatment cmay cbe caffected cby cthe cconcentration cof csalt, ca
, degerming c- cCORRECT cANS✔✔removal cof cmicrobes cby cmechanical cmeans, csuch cas cby cwas
antiseptic c- cCORRECT cANS✔✔a cchemical cproduct cthat cis cused cto ckill cmicroorganisms con clivi
disinfectant c- cCORRECT cANS✔✔a cchemical cor cphysical ctreatment cthat cis cused cto ckill cmicroo
cobject
pasteurization c- cCORRECT cANS✔✔use cof cheat cto cdestroy cpathogens cand creduce cthe cnumbe
cin ca cbeverage
autoclave c- cCORRECT cANS✔✔a cpressurized csteam cchamber cthat cis cused cto csterilize csample
ethylene coxide c- cCORRECT cANS✔✔a cgas cused cto csterilize cobjects cthat care csensitive cto chea
cproteins cand ccross-links cDNA
thimerosal c- cCORRECT cANS✔✔a cmercury-containing ccompound cused cto cpreserve cvaccines, c
quats c- cCORRECT cANS✔✔synthetic cdetergents cthat ccan chelp cto cdegerm ca csurface cand care c
cdisrupting ccell cmembranes
hydrogen cperoxide c- cCORRECT cANS✔✔an cagent cthat ckills cmicroorganisms cby coxidizing corga
chlorine c- cCORRECT cANS✔✔a chalogen cgas cused cto cdisinfect cdrinking cwater
triclosan c- cCORRECT cANS✔✔a cchlorinated cbisphenolic cused cas ca cdisinfectant cor cantiseptic ci
cantibacterial csoap
Which cone cof cthe cfollowing cstatements cabout cantibiotics cand cantimicrobial cdrugs cis ctrue? c- cCO
cfor cany cantibiotic cor cantimicrobial cdrug cis cthat cit ckills charmful cmicroorganisms cbut cnot cthe chu
Streptomyces c- cCORRECT cANS✔✔A: cErythromycin c
A: cTetracycline
D cMold c- cCORRECT cANS✔✔D: cGriseofulvin c
D: cPenicillin
Sulfa cDrugs c(example: cSulfonamide) c- cCORRECT cANS✔✔Inhibits cthe csynthesis cof cfolic cacids
Penicillins cand cCephalosporins c- cCORRECT cANS✔✔Blocks cthe csynthesis cof cthe ccell cwall.
Aminoglycosides c(example: cStreptomycin) c- cCORRECT cANS✔✔Binds cto c70S cribosome cand cc
cmRNA.
Quinolones c- cCORRECT cANS✔✔Inhibits cDNA csynthesis cby cblocking cthe cactivity cof cDNA cgyra
Quinolines, csuch cas cquinine cand cchloroquine cinhibit cmetabolism cof cmalaria cparasites.
Tetracyclines c- cCORRECT cANS✔✔Binds cto c70S cribosomes cand cblocks cthe cbinding cof ctRNAs
Macrolides c(example: cErythromycin) c- cCORRECT cANS✔✔Binds cto c70S cribosome cand cinhibits
cribosome cdown cthe cmRNA.
Neuraminidase c- cCORRECT cANS✔✔inhibitors cfight cinfluenza cby cinhibiting cthe cattachment cand
Amphotericin cB c- cCORRECT cANS✔✔is ca ctopical cantifungal cagent cthat cdamages cmembranes c
Operon c- cCORRECT cANS✔✔A cgroup cof cgenes cthat care cphysically cnext cto ceach cother con cthe
cas ca cunit.
Structural cGene c- cCORRECT cANS✔✔A csequence cof cDNA cthat cencodes cthe cinformation cneed
ca cprotein
Regulatory cGene c- cCORRECT cANS✔✔A csequence cof cDNA cencoding cinformation cneeded cto c
cprotein cthat cis cinvolved cin ccontrolling cthe cexpression cof cother cgenes.
Promoter c- cCORRECT cANS✔✔A csequence cof cDNA cthat cacts cas cthe csite cwhere cRNA cpolyme
ctranscription.
Regulatory cFactor c- cCORRECT cANS✔✔A cprotein cthat cbinds cto ca cspecific csequence cof cnucleo
cand ccontrols cthe ctranscription cof cnearby cgenes.
Operator c- cCORRECT cANS✔✔A csequence cof cDNA cwhere ca cprotein ccan cbind cand ccontrol cthe
cgenes.
Origin c- cCORRECT cANS✔✔A csequence cof cDNA cthat ctells cDNA cpolymerase cwhere cto cstart cth
plasmid c- cCORRECT cANS✔✔A csmall ccircular cring cof cDNA cthat ccarries cauxiliary cgenes cin cbac
chromosome c- cCORRECT cANS✔✔In cbacteria, ca clarge ccircular cring cof cDNA cthat cconstitutes cth
cmaterial.
transformation c- cCORRECT cANS✔✔A cbacterial ccell ctakes cup cnaked cDNA cfrom cthe cenvironme
cacquired.
transduction c- cCORRECT cANS✔✔A cbacterial ccell cis cinfected cby ca cphage cparticle cthat ccontain
transposon c- cCORRECT cANS✔✔A csegment cof cDNA cthat ccan cbe cduplicated cand cmoved cfrom
cbacterium's cgenome.
conjugation c- cCORRECT cANS✔✔DNA cmoves cfrom ca cdonor cbacterial ccell cto ca crecipient cthrou
cphysical ccontact.
True c- cCORRECT cANS✔✔Refrigeration ctends cto cbe cbacteriostatic crather cthan cbacteriocidal. c
Protozoa ctend cto cbe cmore cresistant cto cantimicrobial cagents cin cthe ccyst cform cthan cin cthe cactiv
cemit cultraviolet clight cand ccan ccause csunburns cand cdamage cto cunshielded ceyes. c
cThe cefficiency cof can cantimicrobial ctreatment cmay cbe caffected cby cthe cconcentration cof csalt, ca
, degerming c- cCORRECT cANS✔✔removal cof cmicrobes cby cmechanical cmeans, csuch cas cby cwas
antiseptic c- cCORRECT cANS✔✔a cchemical cproduct cthat cis cused cto ckill cmicroorganisms con clivi
disinfectant c- cCORRECT cANS✔✔a cchemical cor cphysical ctreatment cthat cis cused cto ckill cmicroo
cobject
pasteurization c- cCORRECT cANS✔✔use cof cheat cto cdestroy cpathogens cand creduce cthe cnumbe
cin ca cbeverage
autoclave c- cCORRECT cANS✔✔a cpressurized csteam cchamber cthat cis cused cto csterilize csample
ethylene coxide c- cCORRECT cANS✔✔a cgas cused cto csterilize cobjects cthat care csensitive cto chea
cproteins cand ccross-links cDNA
thimerosal c- cCORRECT cANS✔✔a cmercury-containing ccompound cused cto cpreserve cvaccines, c
quats c- cCORRECT cANS✔✔synthetic cdetergents cthat ccan chelp cto cdegerm ca csurface cand care c
cdisrupting ccell cmembranes
hydrogen cperoxide c- cCORRECT cANS✔✔an cagent cthat ckills cmicroorganisms cby coxidizing corga
chlorine c- cCORRECT cANS✔✔a chalogen cgas cused cto cdisinfect cdrinking cwater
triclosan c- cCORRECT cANS✔✔a cchlorinated cbisphenolic cused cas ca cdisinfectant cor cantiseptic ci
cantibacterial csoap
Which cone cof cthe cfollowing cstatements cabout cantibiotics cand cantimicrobial cdrugs cis ctrue? c- cCO
cfor cany cantibiotic cor cantimicrobial cdrug cis cthat cit ckills charmful cmicroorganisms cbut cnot cthe chu
Streptomyces c- cCORRECT cANS✔✔A: cErythromycin c
A: cTetracycline
D cMold c- cCORRECT cANS✔✔D: cGriseofulvin c
D: cPenicillin
Sulfa cDrugs c(example: cSulfonamide) c- cCORRECT cANS✔✔Inhibits cthe csynthesis cof cfolic cacids
Penicillins cand cCephalosporins c- cCORRECT cANS✔✔Blocks cthe csynthesis cof cthe ccell cwall.
Aminoglycosides c(example: cStreptomycin) c- cCORRECT cANS✔✔Binds cto c70S cribosome cand cc
cmRNA.
Quinolones c- cCORRECT cANS✔✔Inhibits cDNA csynthesis cby cblocking cthe cactivity cof cDNA cgyra
Quinolines, csuch cas cquinine cand cchloroquine cinhibit cmetabolism cof cmalaria cparasites.
Tetracyclines c- cCORRECT cANS✔✔Binds cto c70S cribosomes cand cblocks cthe cbinding cof ctRNAs
Macrolides c(example: cErythromycin) c- cCORRECT cANS✔✔Binds cto c70S cribosome cand cinhibits
cribosome cdown cthe cmRNA.
Neuraminidase c- cCORRECT cANS✔✔inhibitors cfight cinfluenza cby cinhibiting cthe cattachment cand
Amphotericin cB c- cCORRECT cANS✔✔is ca ctopical cantifungal cagent cthat cdamages cmembranes c
