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Retired NBME 20 Answers

nbme20/Block 1/Question#11 (reveal difficulty score)
The sequence surrounding the first two exons ...
Disruption of normal splicing by creation of a new 3′ splice site 🔍 / 📺 / 🌳 / 📖
tags: biochem dna repeat

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 +20  upvote downvote
submitted by drdoom(1206)
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sA debecsdri in teh nqosieut ste,m hsit itmutaon crusco tiwnih an nitnor (a eneg mnseetg which is rarsebnidtc DN]AA-[gNt;&R btu not anle)ttsd.ra NAR pilscnig n(syzem)e ragb ANR and lp“oo ;i”t an rnoint si ctu otu dna eth onsxe on riethe sedi fo teh noitrn era i,aenjddo elik hist:

r—e2xoen—o1inxonnt ;&=tg nox2xen1—eo

lTlp,yicay hits iglisncp ccrsou at eth vyer gseed of hte intorn tawh( I noteded itwh eth “—” .rtcr)aehac Btu in our acse, a unttomia hntiwi teh tonrin is sincgua NRA slingcpi enzeym ot eenizcorg a nwe :iste eht sceplri suct iwihtn the ntirno eansitd( of at the evyr eged, as ti )udlso.h o,S ew etg enhgtsiom that okslo keil s:thi

1oeo—2ntn—exrixn

’ahTts a oyatllt enrefidft AmRN eulle,omc nda 'sti ggoin ot akme ruo βn-giblo enrtoip olko dna( eabhev) ayfwull gnearts.

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drdanielr  I rreeemmb thta ni teh Are-Rmp,N hte plisncgi iesst fo eht irnotn ehewr teh osiselopcem asctahet rea neuusrddor by -"GG-"AU- ikle ",ag"uc so heer eht lsomhoogou DAN ot htsi nadrts ulowd eb ricantdsebr itno a."..u............"..gg. dna isth wdoul tecare a '3 eicsl ties oot sono +7
vivarin  if tshi si ppseudso to be mReNr,-pA hyw are tereh 'sT in the ?sqneecue 'mI os onudsfce yb hsti rof esom nsaero +8
sars  iTsh si teh gene A)N(,D not ethresogouen AR.Nm +
athenathefirst  hTe egigtbs eucl hyte dasi sith si B mlaesisaah,t ihwhc eenv if ouy i'ddnt nkow naiynght baotu oxsen nda nriston uyo hlusdo vhae kownn htat b ealtaaihsms ionvsvel a tatmonui ni ipgnslic or ropmreot stie hamo(tpa apeg 4.)4 I gto hits iqutenos rwgon too :( +1

Translocation may result in failure to transcribe RNA because of disruption of a regulatory element (eg, promoter) within a gene.

The affected gene will not be expressed or will be expressed in a dysregulated manner compared to the normal phenotype



 +5  upvote downvote
submitted by monoloco(155)
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hTis hsa ot od htiw tonrin c.nlpsigi eeemRrbm GGAT. Thsi aottunim idceudn an GA oslerc wrhee it aws sdopspue to b,e os semo of tath ntrino sutj eaebmc an .enox

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 +4  upvote downvote
submitted by waterloo(126)
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I reiperdettn ncqe"eesu osrgudrnniu irtfs owt soxne fo gn"ee - to nmae hety smtu be ilnktga btoua t.nrosni There of teh nsaerw eiocsch ot'nd aveh ucmh to do hitw osirtn.n

  • eemnisss uatnitmo dluwo aveh ot eb in teh exno to cuase ecgahn ni inmoa a.cdi
  • linoyypaoelntad is ta the nde fo the AmRN
  • iinbtinohi of ltioeciarpn is AND

ttha mya ton eb ari h,gitt tbu ehpsl nwraor wdo.n slAo nokignw oesm sa-smlBaehtai si edu ot tiasnrva ni raonbaml licsnpgi .phles (AF 2091 gp 4)3

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 +1  upvote downvote
submitted by s1khwitit(1)
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oals emrbemer tath sihamleBaast- is due to tonpi otsuatnim in elipcs steis dna mrproeot scnuqeees 1(AF9 g)410p. fI oyu rtceae a naiuttom in a eislcp tsie uoy lilw uyrsle essm up the rrccoet ANRm eeddne ot keam a lnnucftaoi ig-nBlbo entrpi.o ahTt si who I sdraenwe eth isneot.qu

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