BSC 108 - TEST 3 WITH COMPLETE SOLUTIONS

Bsc 108 - Test 3 With Complete b b b b b b




Solutions b




Assume nhyou nhwere nhstudying nhtwo nhcharacteristics nhof nhpeas, nhand nhwhen nhyou nhcrossed
b b b b b b b b b b b




nhheterozygous nhF1 nhindividuals nhyou nhdid nhnot nhsee nhthe nh9:3:3:1 nhratio nhpredicted nhfor nha
b b b b b b b b b b b b b




nhdihybrid nhcross. nhYou nhlater nhfound nhthat nhthese nhtwo nhcharacteristics nhwere nhon nhthe nhsame
b b b b b b b b b b b b b




nhchromosome. nhWith nhthis nhinformation, nhhow nhwould nhyou nhexplain nhthe nhresults? nh- nh nhcorrect
b b b b b b b b b b b b b




nhanswer- nhthe nhgenes nhare nhlinked nhand nhare nhinherited nhtogether
b b b b b b b b b




b nhBefore nha nhcell nhdivides, nhit nhcopies nhall nhof nhits nhchromosomes. nhWhile nhthe nhtwo nhcopies nhof
b b b b b b b b b b b b b b




b nha nhchromosome nhare nhattached nhthey nhare nhcalled nh____________. nh- nh nhcorrect nhanswer-
b b b b b b b b b b b




b nhsister nhchromatids
b




b nhChromosomes nhcontain nhmost nhof nhthe nhcell's nh___________ nhwhich nhacts nhas nhthe nhmolecule
b b b b b b b b b b b




b nhof nhheredity. nh- nh nhcorrect nhanswer- nhDNA
b b b b b b




b nhDNA nhand nhprotein nhtogether nhform nha nhcomplex nhcalled nh_____________. nh- nh nhcorrect
b b b b b b b b b b b




b nhanswer- nhchromatin b




b nhThe nhDNA nhof nhevery nheukaryotic nhcell nhis nhstored nhin nhone nhor nhmore nh_____________
b b b b b b b b b b b b




b nhlocated nhin nhthe nh___________. nh- nh nhcorrect nhanswer- nhchromosomes
b b b b b b b b




nucleus

,b nhA nhduplicated nhchromosome nhremains nhtightly nhpaired nhwith nhits nhpartner nhat nha nhregion nhcalled
b b b b b b b b b b b b




b nhthe nh________________. nh- nh nhcorrect nhanswer- nhcentromere
b b b b b b




b nhSurprising nhnew nhevidence nhhas nhshown nhthat, nhin nhsome nhcases, nhenvironmental nhfactors nhcan
b b b b b b b b b b b




b nhmodify nhchromosomes nhin nhsuch nha nhway nhthat nhchanges nhthe nhexpression nhof nhgenes nhwithout
b b b b b b b b b b b b




b nhchanging nhgenes nhthemselves nhor nhany nhpart nhof nhthe nhDNA nhsequence. nhThese nhmodifications
b b b b b b b b b b b




b nhare nhcalled nhepigenetic nheffects. nhEpigenetic nheffects nhcan nhsometimes nheven nhbe nhpassed nhfrom
b b b b b b b b b b b




b nhgeneration nhto nhgeneration. nhIn nhwhat nhway nhwould nhthis nhkind nhof nh"inheritance" nhbe nhan
b b b b b b b b b b b b




b nhexception nhto nhMendel's nhlaws? nh- nh nhcorrect nhanswer- nhaccording nhto nhMendel's nhlaws, nhthe
b b b b b b b b b b b b




b nheffects nhof nhour nhenvironment nhare nhnot nhpassed nhon nhto nhthe nhnext nhgeneration
b b b b b b b b b b b




b nhWhat nhare nhthe nhgenotypes nhfor nhblood nhgroup nhA? nh- nh nhcorrect nhanswer- nhI^A nhI^A
b b b b b b b b b b b b b




or



I^A nhib




b nhWhat nhare nhthe nhgenotypes nhfor nhblood nhgroup nhB? nh- nh nhcorrect nhanswer- nhI^B nhI^B
b b b b b b b b b b b b b




or



I^B nhib




b nhWhat nhare nhthe nhgenotypes nhfor nhblood nhgroup nhAB? nh- nh nhcorrect nhanswer- nhI^A nhI^B
b b b b b b b b b b b b b




b nhWhat nhare nhthe nhgenotypes nhfor nhblood nhgroup nhO? nh- nh nhcorrect nhanswer- nhii
b b b b b b b b b b b b

, b nhTay nhSachs nhdisease nhruns nhin nhRebecca's nhfamily. nhWhen nhshe nhlooked nhat nhher nhfamily
b b b b b b b b b b b b




b nhpedigree, nhshe nhsaw nha nhshaded nhcircle. nhThis nhrepresented nh__________. nh- nh nhcorrect
b b b b b b b b b b b




b nhanswer- nha nhfemale nhwith nhTay nhSachs b b b b b




b nhThe nhmost nhcommon nhphenotype nhin nha nhnatural nhpopulation nhis nhreferred nhto nhas nhthe
b b b b b b b b b b b b




b nh__________. nh- nh nhcorrect nhanswer- nhwild nhtype b b b b b b




b nhIn nhhumans, nhthe nhpresence nhor nhabsence nhof nhdimples nhis nha nhtrait nhcontrolled nhby nha nhsingle
b b b b b b b b b b b b b b




b nhgene. nhWhat nhis nhthe nhgenotype nhof nhan nhindividual nhwho nhis nhheterozygous nhfor nhdimples?
b b b b b b b b b b b b




b nh(use nhD nhas nhthe nhgenotypes) nh- nh nhcorrect nhanswer- nhDd
b b b b b b b b b




b nhThe nhH nhallele nhspecifies nha nhcell-surface nhreceptor nhprotein nhthat nhliver nhcells nhuse nhto nhmop
b b b b b b b b b b b b b




b nhup nhexcess nh"bad nhcholesterol" nhfrom nhthe nhblood. nhEach nhreceptor nhprotein nhtype nhonly
b b b b b b b b b b b




b nhaccepts nhspecific nhmolecule nhshapes. nhWith nhonly nhhalf nhas nhmany nhreceptors nhon nhtheir nhliver
b b b b b b b b b b b b




b nhcell nhmembranes nhas nhHH nhindividuals, nhheterozygotes nhcan nhremove nhmuch nhless nhexcess
b b b b b b b b b b




b nhcholesterol. nh_______________ nh- nh nhcorrect nhanswer- nhrelationship nhof nhstructure nhto nhfunction
b b b b b b b b b b




b nhOver nhthousands nhof nhyears, nhgenetic nhtinkering nhhas nhled nhto nhthe nhincredible nhvariety nhof
b b b b b b b b b b b b




b nhbody nhtypes nhand nhbehaviors nhwe nhhave nhtoday, nhfrom nhhuge, nhdocile nhGreat nhDanes nhto nhtiny,
b b b b b b b b b b b b b




b nhspunky nhChihuahuas. nh________________ nh- nh nhcorrect nhanswer- nhevolution
b b b b b b b




b nhThe nhclogging nhof nhblood nhvessels nhcauses nha nhcascade nhof nhsymptoms; nhblood nhflow nhto nhbody
b b b b b b b b b b b b b




b nhparts nhis nhreduced, nhresulting nhin nhperiodic nhfever, nhsevere nhpain, nhand nhdamage nhto nhthe
b b b b b b b b b b b b




b nhheart, nhbrain, nhand nhkidneys. nhThe nhabnormal nhcells nhare nhdestroyed nhby nhthe nhbody, nhcausing
b b b b b b b b b b b b




b nhanemia nhand nhgeneral nhweakness. nh____________________ nh- nh nhcorrect nhanswer- nhinteractions
b b b b b b b b b




b nhwithin nhbiological nhsystems b b




b nhMendel nhcrossed nhhomozygous nhplants nhhaving nhround-yellow nhseeds nhwith nhplants nhhaving
b b b b b b b b b




b nhwrinkled-green nhseeds. nhThe nhunion nhof nhgametes nhfrom nhthe nhparental nhgeneration nhyielded
b b b b b b b b b b




b nhhybrids nhheterozygous nhfor nhboth nhcharacters. nhAll nhof nhthese nhoffspring nhhad nhround-yellow
b b b b b b b b b b




b nhseeds. nh________________ nh- nh nhcorrect nhanswer- nhinformation nhflow
b b b b b b b