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Retired NBME 20 Answers

nbme20/Block 2/Question#3 (reveal difficulty score)
An investigator compares the DNA sequences of ...
5โ€ฒ CCGG ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: cell

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 +3  upvote downvote
submitted by โˆ—hayayah(1212)
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oMts erstoncriti zsyneme dinb raonisl.mpde

oS tboh 5CGGC' ro CGCG3' dluow hvae eben pcaatbclee in siht e.nrsaioc

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meningitis  Y,se c.teorcr hTe CGCG'5 niopot ucdol eucas meso fnnsco.oiu +1
guillo12  I lryale n'odt ndrtadeusn the iqstneuo nor hte rswna.e nCa smooene xpeilan it orf imumesd ekli ?em +16
whossayin  eys eeps..al I'm htiw g21luoli no ihst +
sugaplum  ol1ul@gi2 awssinyoh@ io netussq asys u'voye ctrdeea a new tuc stie, .1 kool ta eht oerngi no het scki sv lyt.eahh ehT C ot G is hte aenhcg 2 . teriW tuo het ckis "GCGC" rmof '5'3- you locdu twrei uot the olhwe ,gihtn but eth swenra noyl hsa 4 rlt,etes os nebgi zlay rhee 3. itwre druen it, tsi lcp,oemmnet hte dan eabs par.i oS GC"G"C .4 eebemrrm ohbt tdanrss ear nogig ni toepsopi ieinsrdoct enwh oyu tewri hemt uot on pto fo ceha tho.er 5. So het mtootb rnsdta tlayaclu arsed '5 CGGC '3 os htat is eht nasI ewr ophe hatt asrelc ti pu +60
shirafune  oT add ot the apienmlord atpr, ymna ecnrtitisro aseenusnocled ualtcaly untonfci as rdies.m Echa avdinidilu biuunts slyaluu ahs a neksai,c os to etarec a aruldsedt-obned akreb in ADN, etyh usmt ndib a moaldenipr os htat hace ciaenymzt omaind ecearts a g-seelniasrdntd ekrab hu(ts a etlrddsd-oaenbu brae).k +1
alimd  yWh do we ttras ormf GC?CG yWh not GCGG ro ?ACCT +6
alimd  hWy do we srtat frmo ?CGCG yWh ont CGGG ro CA?TC +1
ssbhatti  I hiktn tsi ude to teh poeinadmlr ?meeitrurnqe +
bbr  byeaM mI' nsgsimi a trap he,er utb teh rutsbetsa htta eht enmyze lwil idnb to ilwl eb eth .NAD I tenw tiwh teh elin atht saw form teh unseqsiot se,mt as ti si the umaedtt ADN will eb oindgrzcee yb eht etrcointirs em.nyez I tindd ees eth nede to trvenco it toni seab r.ingaip Let em okwn htaw oyu sgyu hn.itk +2
uloveboobs  br@b I r.eaeg 'Im nylfitdeie not an ptxeer in seeth bal e,stst tub hte qeusotin kass "rueabstts ycis"cpteifi. I swa ntkiighn that it owuld egzrecion het nmlrobaa ADN; thniong to do thwi NAR. I tddi'n knwo bauto eht lrimnacdpoi rnrpeceeef of erocrsintit meeysn,z but I ontd' intkh 'ehetrs nya nede ot gerufi tuo rasgpbiine-a nda owthtan .erhe A(t seatl rof sith qusoteni ti t'indd rokw uot taht )wya! +
spaceboy98  upgm,lusa dI' iveg yuo an radaw if this swa dtidRe +6



 +2  upvote downvote
submitted by โˆ—topgunber(68)
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iricoenttsR smyznee utc ta cimndlrpoai ese.sce..qun i nwek tihs owdlu beit em ni teh ass a.eymo+sd We are itntesg two pceies fo ADN- neo twih a iaounttm, one thwut.o+i eW ndee to sue a onrrsticite ezneym to tuc xletcay eewrh eth aotntumi si in drero to ese hhcwi eecpi fo DNA ahs eht suneqcee of itesretn hte( tiirsrnocet nyezme ist.)e I ecosh 5' ACCG, hchiw wluod ctu teh uttmaed sdntra nda tno het dwil .eypt hWy si hsit nw?gor scaeueb when oyu ewrit het eymnprcoamlet arnstd uyo etg CGG,T ihhcw is ont a irmorr eaigm fo G.CCA + Cetrcro wsearn 5' GCGC, eth omtmcepnelrya t:nsdar GCCG. h Tis si a doinipcrlam cneueqes )(1, duowl ctu eht mdatuet stndar of DAN adn tno the lwid ptey (2,) wcihh nhew snigu elg ossrechetirpleo het meutatd nsrdta dluwo oshw 2 nadsb asmll a,bnds ihewl het nno dtmeaut dsrtna olwdu show oen geral dban (3)

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topgunber  rsoyr utbo teh tfraom on hist +
utap2001  hTe eoitniinfd of ldomaiprne is irrrom" ."censeueq heT sievren of eynrtecmlapmo sntdar is het ames htiw amni anrdst. iidtwtqasmuintordrooqpstmthpzrtiscsc-raiioreol-e-.e/hm/:yn/-o-s-cssn-cgute/eyotccnaeentu-s +
drdoom  ldpiaomndlperornmia +



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