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The primary reason for the incredible success of viruses in their incredible diversity

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i need very good quality answer;Attachment Preview;PS15.docx Download Attachment;Question1;1.;Theprimaryreasonfortheincrediblesuccessofvirusesintheirincrediblediversity.Theprimary;sourcesofthisdiversityareBlank1Blank2Blank3Blank4;Answer;2points;Question2;1.;Brieflydescribewhyvirusesaresaidtoexistaspopulationsofsequencesandnotsingle;sequences.Whatisthetechnicaltermforthisconcept.;Answer;PressTabtoenterthecontenteditor.Forthetoolbar,pressALT+F10(PC)orALT+FN+F10(Mac).;Path:p;Words:0;2points;Question3;1.;TheprimaryreasonHumaninfectionsbyEbolavirusarelargelylocalizedtopartsofAfricais;whichofthefollowing(selectone)?;Answer;A.;Africanshaveagenticpolymorphismthatenhancestheirresistancetomalaria,butmakes;themmoresusceptibletoEbola(andotherfilovirus)infections.;B. Ebolaisusedasabioweoponbygovernmentmilitiasfightingpoliticalinstabilityin;centralAfrica.;C. TheprimaryanimalreservoirfortheEbolavirusisgeographicallyrestrictedtoAfrica;D.;ThewarmdryclimateinAfricaenablesthevirustoremainactiveoutsidethehostfor;extendedperiods.;2points;Question4;1.;ThehigherthemutationrateofanRNAvirus,themorelikelytheviruswillbeabletosucceed.;Answer;True;False;1points;Question5;1.;Althoughthepoliovirushasbeenaroundforcenturies,itonlybecameasignificanthealth;probleminthedevelopingworldinthe20thcenturydueto(selectone)?;Answer;Poliowastransmittedtohumansbyazoonosisinthe1930's;Vaccinationprogramsforpoliobegan;Lossofnaturalvaccinationduetoimprovedsanitation.;Virusevolvedtomorepathogenicform;Humanswerebetterabletotravelandmigratewhichenhanceddisseminationofthevirus;2points;Question6;1.;Thegraphbelowshowstherelationshipbetweenviralgenomesizeandmutationrate.Explain;theobservedrelationshipbetweengenomesizeandmutationrate(35sentencesmax).;Note:Themutationrateisexpressedasthenumberofsubstitutionspernucleotideper;generation,.Forvirusesagenerationisdefinedasacellinfectioninviruses(s/n/c).;Answer;PressTabtoenterthecontenteditor.Forthetoolbar,pressALT+F10(PC)orALT+FN+F10(Mac).;Path:p;Words:0;2points;Question7;1.;CoronavirusesareaclassofssRNAvirusesthatareresponsibleforanumberofrespiratory;diseasesincludingSARSandtherecentlyidentifiedMiddleEasternRespiratorySyndrome;(MERS).CoronavirusesarethelargestknownRNAviruseswithgenomesrangingfrom2632;kb.Coronavirusesareabletoachievesuchlargegenomesbecausetheypossessagenenotfound;inotherRNAviruses.Usingwhatyouhavelearnedthissemester,speculatein34sentencesthe;likelyfunctionofthisgenethatenablescoronavirusestopossesssuchlargegenomes.Justify;youranswer.;Answer;PressTabtoenterthecontenteditor.Forthetoolbar,pressALT+F10(PC)orALT+FN+F10(Mac).;Path:p;Words:0;2points;Question8;1.;RNAvirusestendtooccupybroadecologicalnicheswithmultiplehostspecies,whileDNA;virusestendtocoevolvewithhostwithfewerhostspecies.;Answer;True;False;1points;Question9;1.;ListthreefactorsthatexplainwhythereappearstobeanincreaseinthenumberEmergingViral;Diseasesglobally.Justifyeachfactorin12sentences.;Answer;PressTabtoenterthecontenteditor.Forthetoolbar,pressALT+F10(PC)orALT+FN+F10(Mac).;Path:p;Words:0;2points;Question10;1.;MatchthefollowingEmergingviruseswiththediseaseorsymptomstheycause.;Answer;Answer;PolioVirus;A.;ReadAnswer;Itemsfor;Question10;Transmissionofvirus;tohumansishighly;dependenton;WestNile;climate/weather;Virus;becauseitinfluences;ReadAnswer;populationsofrodent;Itemsfor;Question10;vector;B. Emergedduetoimprovedsanitationthat;Sin;Nombre;brokenaturalvaccinationcycle;ReadAnswer ViruswasbroughttoAmericasbyearlier;C.;Itemsfor;Question10 explorers.Belivevedtohavewipedout;nativepopulationsbecausetheydidnot;Severe;haveimmunitytovirus.;Acute;D;RespiratoryFirstmajorviralepidemicdocumentedto.;Syndrome bespreadbyairtravel;Virus E. BroughttoUnitedStatesbyinsectvector;ReadAnswer;Itemsfor;Question10;Variloa;ReadAnswer;Itemsfor;Question10;2points;Question11;1.;Explainwhyavirusthatiswelladaptedtoonespeciesandcausesnoapparentdiseasecanupon;aswitchtoanewhostrangecauseseveredisease(Max35sentences)?;Answer;PressTabtoenterthecontenteditor.Forthetoolbar,pressALT+F10(PC)orALT+FN+F10(Mac).;Path:p;Words:0;2points;Question12;1.;Whatisthelastnameofthescientsistwhoaccreditedwiththefollowingquote;Inthebattlebyattrition,humanshavearealproblemcompetingwithmicroorganisms.Hereweare,herearethe;bugs,they'relookingforfood,we'retheirmealinonesenseoranother,howdowecompete?;Answer;1points(ExtraCredit);Save and Submit

 

Paper#16577 | Written in 18-Jul-2015

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