锟斤拷锟斤拷2020锟斤拷呖锟斤拷锟斤拷锟斤拷_锟斤拷(zh锟斤拷n)锟斤拷锟斤拷锟�(zh锟斤拷n)锟斤拷锟斤拷藛锟�锟斤拷锟斤拷锟节革拷锟斤拷锟斤拷锟斤拷煽锟斤拷锟斤拷玫锟酵�锟絎(xu锟斤拷)锟斤拷锟絝锟斤拷锟斤拷悉锟斤拷(f锟斤拷)锟斤拷(x锟斤拷)锟結锟较的積锟斤拷要锟絊锟絩(sh锟斤拷)锟斤拷锟斤拷锟斤拷锟竭匡拷锟絎(w锟斤拷ng)小锟斤拷锟斤拷锟轿伙拷锟斤拷锟斤拷锟斤拷锟斤拷锟揭恍╋拷呖锟斤拷锟斤拷锟截傦拷锟街�锟絉锟絚(di锟斤拷n)锟斤拷锟斤拷锟斤拷覅锟斤拷锟斤拷锟絰锟斤拷

锟斤拷锟斤拷锟紷锟斤拷锟斤拷(g锟斤拷)锟絇(gu锟斤拷n)系式锟街別锟角ｏ拷

锟斤拷锟斤拷1锟斤拷锟斤拷锟斤拷锟紻NA锟侥兩條鏈分別锟斤拷锟斤拷锟芥満廷锟芥湹锟皆�锟斤拷锟斤拷么锟斤拷锟斤拷(j锟斤拷)锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟斤拷锟斤拷锟斤拷系锟斤拷锟斤拷锟斤拷剩锟紸锟斤拷一锟斤拷锟斤拷锟节�锟斤拷锟较碉拷锟斤拷锟斤拷锟斤拷啶ｏ拷T锟斤拷锟斤拷锟斤拷锟斤拷系锟斤拷B锟斤拷锟绞ｏ拷G锟斤拷一锟斤拷锟斤拷锟节�锟斤拷锟较的帮拷锟斤拷啶ｏ拷C锟斤拷锟斤拷锟斤拷之锟斤拷然锟斤拷

锟斤拷锟斤拷锟缴猴拷锟斤拷锟介：A锟斤拷T锟斤拷锟斤拷T锟斤拷A锟斤拷C锟斤拷G锟斤拷锟斤拷G锟斤拷C锟斤拷锟斤拷

锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷(j锟斤拷)A锟斤拷T锟斤拷锟斤拷T锟斤拷A锟斤拷C锟斤拷G锟斤拷锟斤拷G锟斤拷C锟津，岋拷锟斤拷锟斤拷锟斤拷(g锟斤拷)DNA锟斤拷锟接侊拷锟絝锟斤拷A锟侥匡拷锟斤拷锟斤拷锟斤拷T锟侥匡拷锟斤拷锟斤拷C锟侥匡拷锟斤拷锟斤拷锟斤拷G锟侥的匡拷锟斤拷锟斤拷

锟斤拷锟斤拷锟缴猴拷锟斤拷锟斤拷A锟斤拷=T锟斤拷锟斤拷G锟斤拷=C锟斤拷锟斤拷

锟斤拷锟斤拷3锟斤拷锟斤拷DNA锟侥�锟斤拷锟斤拷A+T锟斤拷锟斤拷占锟斤拷鏈堿锟斤拷锟斤拷锟斤拷锟斤拷a锟斤拷锟斤拷锟斤拷A锟斤拷T锟斤拷锟斤拷T锟斤拷A锟津及�锟芥湹膲A锟斤拷锟斤拷锟斤拷锟斤拷锟节�锟芥湹目锟斤拷锟�锟斤拷锟缴碉拷锟斤拷DNA锟侥�锟斤拷锟斤拷A+T锟斤拷锟斤拷也占锟斤拷鏈堿锟斤拷锟斤拷锟斤拷锟斤拷a锟斤拷锟斤拷同锟斤拷锟斤拷锟缴得ｏ拷RNA锟叫碉拷A+U锟斤拷锟斤拷占锟斤拷RNA锟紸锟斤拷锟斤拷锟斤拷锟斤拷a锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(g锟斤拷)DNA锟斤拷锟接侊拷锟絝锟斤拷A锟斤拷锟斤拷T锟斤拷锟斤拷A锟斤拷A锟斤拷T锟斤拷T锟斤拷2锟斤拷A锟斤拷T锟斤拷锟斤拷锟斤拷锟斤拷(g锟斤拷)DNA锟斤拷锟接的堿锟斤拷锟斤拷锟斤拷锟斤拷锟节ｏ拷锟斤拷锟斤拷鏈堿锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷A锟斤拷锟斤拷T锟斤拷锟斤拷锟斤拷占锟斤拷锟斤拷(g锟斤拷)DNA锟斤拷锟接堿锟斤拷锟斤拷锟斤拷锟斤拷a锟斤拷锟斤拷

锟斤拷锟斤拷锟缴猴拷锟斤拷锟介：锟斤拷锟斤拷A锟斤拷T锟斤拷/锟今總ｏ拷a锟斤拷,锟絫锟斤拷A锟斤拷T锟斤拷/锟津總ｏ拷a锟斤拷锟斤拷锟斤拷A锟斤拷锟斤拷T锟斤拷锟斤拷/DNA锟斤拷锟斤拷a%锟斤拷锟斤拷A+U锟斤拷/锟斤拷RNA锟斤拷a%锟斤拷C+G同锟斤拷锟叫达拷锟絇(gu锟斤拷n)系锟斤拷锟斤拷锟斤拷C锟斤拷G锟斤拷/锟今總ｏ拷b锟斤拷,锟絫锟斤拷C锟斤拷G锟斤拷/锟津總ｏ拷b锟斤拷锟斤拷锟斤拷C锟斤拷锟斤拷G锟斤拷锟斤拷/DNA锟斤拷锟斤拷b%锟斤拷锟斤拷C+G锟斤拷/锟斤拷RNA锟斤拷b%锟斤拷

锟斤拷锟斤拷锟杰讹拷同锟絎(xu锟斤拷)锟絝锟斤拷知锟斤拷锟剿癸拷式也锟斤拷锟斤拷锟矫ｏ拷锟斤拷锟街灰�锟斤拷锟絵目锟叫碉拷锟斤拷知锟絣锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷械姆锟绞斤拷锟斤拷F(xi锟斤拷n)锟斤拷锟斤拷锟斤拷锟酵猴拷锟斤拷锟阶匡拷锟斤拷锟斤拷锟斤拷锟斤拷聯(li锟斤拷n)系锟斤拷锟侥讹拷知锟斤拷該锟斤拷锟角傦拷(g锟斤拷)锟斤拷式锟斤拷

锟斤拷锟斤拷锟絲锟斤拷锟斤拷锟斤拷锟絴(zh锟斤拷)锟斤拷锟紸(ch锟斤拷)锟斤拷锟絍锟揭傦拷锟斤拷锟斤拷锟絧锟紻NA锟斤拷锟斤拷锟斤拷锟斤拷锟紸锟斤拷之锟絞锟斤拷锟紹锟斤拷锟斤拷锟斤拷循锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟侥ｏ拷锟斤拷DNA锟斤拷锟接的忥拷(f锟斤拷)锟狡硷拷锟斤拷息RNA锟斤拷锟紻(zhu锟斤拷n)锟斤拷^锟斤拷锟斤拷也锟斤拷锟斤拷循锟紷一原锟絫锟斤拷锟缴此匡拷見锟斤拷要锟斤拷Q锟紸锟斤拷锟斤拷锟斤拷計(j锟斤拷)锟斤拷膯锟斤拷}锟斤拷锟絇(gu锟斤拷n)锟絀锟斤拷锟斤拷锟斤拷锟节岋拷锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟斤拷锟斤拷锟解及锟絓(y锟斤拷n)锟斤拷锟斤拷

锟斤拷锟斤拷锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟斤拷锟絧锟紻NA锟斤拷锟斤拷锟斤拷锟侥種锟紸锟斤拷锟斤拷锟絇(gu锟斤拷n)系锟斤拷锟斤拷锟斤拷锟絖锟斤拷锟経锟斤拷锟斤拷锟斤拷锟斤拷锟絚锟斤拷锟斤拷鋵�锟斤拷锟斤拷A=T锟斤拷G=C锟斤拷锟缴达拷锟斤拷锟揭傦拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷P(gu锟斤拷n)系锟斤拷

锟斤拷锟斤拷锟斤拷式一

锟斤拷锟斤拷A+G=T+C锟斤拷A+C=T+G=50%

锟斤拷锟斤拷锟斤拷锟斤拷锟絧锟紻NA锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絘(b锟斤拷)锟侥兩堿锟斤拷锟斤拷锟斤拷之锟斤拷锟斤拷锟斤拷鹊锟�锟斤拷占锟斤拷锟斤拷(g锟斤拷)锟斤拷锟接堿锟斤拷锟斤拷锟斤拷锟斤拷50%锟斤拷

锟斤拷锟斤拷锟斤拷1锟斤拷锟斤拷知一锟斤拷锟斤拷息RNA锟斤拷30锟斤拷(g锟斤拷)锟紸锟斤拷锟斤拷锟斤拷锟斤拷A锟斤拷G锟斤拷12锟斤拷(g锟斤拷)锟斤拷锟斤拷么锟斤拷锟紻(zhu锟斤拷n)錄筹拷锟斤拷息RNA锟斤拷一锟斤拷DNA锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(y锟斤拷ng)锟斤拷C锟斤拷T锟角ｏ拷 锟斤拷

锟斤拷锟斤拷A锟斤拷12锟斤拷(g锟斤拷)B锟斤拷18锟斤拷(g锟斤拷)C锟斤拷24锟斤拷(g锟斤拷)D锟斤拷30锟斤拷(g锟斤拷)

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷息RNA锟斤拷30锟斤拷(g锟斤拷)锟紸锟斤拷锟斤拷锟絫锟斤拷模锟斤拷DNA锟斤拷锟斤拷锟叫戯拷(y锟斤拷ng)锟斤拷60锟斤拷(g锟斤拷)锟紸锟斤拷锟斤拷锟斤拷T+C=A+G锟斤拷锟绞讹拷T+C=60×50%=30锟斤拷锟斤拷(y锟斤拷ng)锟絰锟斤拷D锟斤拷

锟斤拷锟斤拷锟斤拷2锟斤拷一锟斤拷(g锟斤拷)锟斤拷锟斤拷1000锟斤拷(g锟斤拷)锟紸锟斤拷锟斤拷锟斤拷DNA锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷实暮锟斤拷锟斤拷锟�20%锟斤拷锟絫锟斤拷锟斤拷锟斤拷啶的堿锟斤拷锟斤拷锟介（ 锟斤拷

锟斤拷锟斤拷A锟斤拷200锟斤拷(g锟斤拷)B锟斤拷300锟斤拷(g锟斤拷)C锟斤拷400锟斤拷(g锟斤拷)D锟斤拷600锟斤拷(g锟斤拷)

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(j锟斤拷)锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟斤拷A=T=20%锟斤拷锟絫G=C=30%锟斤拷G+C=30%+30%=60%锟斤拷然锟絫锟斤拷锟斤拷锟斤拷啶的堿锟斤拷锟斤拷锟斤拷60%锟斤拷锟斤拷1000×60%=600锟斤拷(g锟斤拷)锟斤拷锟斤拷(y锟斤拷ng)锟絰锟斤拷D锟斤拷

锟斤拷锟斤拷锟斤拷式锟斤拷

锟斤拷锟�锟斤拷锟紸1+G1锟斤拷/(T1+C1锟斤拷=(T2+C2锟斤拷/(A2+G2锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟絧锟紻NA锟斤拷锟斤拷锟叫ｏ拷一锟絣锟斤拷械锟斤拷锟斤拷锟街�锟斤拷锟絚锟斤拷锟街�锟酵的憋拷值锟絚锟戒互锟絘(b锟斤拷)锟斤拷锟斤拷锟斤拷锟�(y锟斤拷ng)锟侥憋拷值锟斤拷锟介倒锟斤拷(sh锟斤拷)锟斤拷

锟斤拷锟斤拷锟斤拷3锟斤拷DNA锟斤拷一锟絣锟斤拷锟斤拷锟�锟斤拷A锟斤拷G锟侥旓拷(sh锟斤拷)锟斤拷锟絚T锟斤拷C锟侥旓拷(sh锟斤拷)锟斤拷之锟饺烇拷0.4锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟戒互锟絘(b锟斤拷)锟斤拷泻锟斤拷锟斤拷锟�(g锟斤拷)DNA锟斤拷锟斤拷锟叫分別锟角ｏ拷 锟斤拷

锟斤拷锟斤拷A锟斤拷0.4锟斤拷0.6 B锟斤拷2.5锟斤拷1.0

锟斤拷锟斤拷C锟斤拷0.4锟斤拷0.4 D锟斤拷0.6锟斤拷1.0

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷知A锟斤拷+G锟斤拷/T锟斤拷+C锟斤拷=0.4锟斤拷锟斤拷锟斤拷(j锟斤拷)锟斤拷式锟斤拷锟斤拷锟缴碉拷A锟斤拷+G锟斤拷/T锟斤拷+C锟斤拷=1/0.4=2.5锟斤拷锟斤拷锟戒互锟絘(b锟斤拷)锟斤拷锟酵�锟接的憋拷锟斤拷值锟斤拷2.5锟斤拷锟斤拷锟斤拷锟斤拷(j锟斤拷)锟斤拷式一锟斤拷锟缴碉拷锟斤拷锟斤拷(g锟斤拷)DNA锟斤拷锟斤拷锟叫的憋拷值锟斤拷(y锟斤拷ng)锟斤拷1锟斤拷锟绞戯拷(y锟斤拷ng)锟絰锟斤拷B锟斤拷

锟斤拷锟斤拷锟斤拷式锟斤拷

锟斤拷锟斤拷锟斤拷式锟较诧拷锟缴為公式锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷锟絧锟紻NA锟斤拷锟斤拷锟斤拷锟斤拷一锟絣锟斤拷械膬煞N锟紸锟斤拷锟斤拷锟侥憋拷值锟斤拷A+T/G+C锟斤拷锟絚锟斤拷锟节伙拷锟絘(b锟斤拷)锟斤拷械谋锟街碉拷锟斤拷锟斤拷锟斤拷锟�(g锟斤拷)锟斤拷锟斤拷锟叫的憋拷值锟斤拷锟斤拷一锟接的★拷

锟斤拷锟斤拷锟斤拷锟斤拷锟絕锟教ｏ拷锟斤拷锟斤拷(j锟斤拷)锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟结對原锟絫锟斤拷A锟斤拷=T锟揭ｏ拷T锟斤拷=A锟斤拷锟斤拷G锟斤拷=C锟斤拷锟斤拷C锟斤拷=G锟斤拷锟斤拷锟絫锟矫筹拷锟結(ji锟斤拷)論锟斤拷

锟斤拷锟斤拷锟斤拷4锟斤拷锟斤拷知某DNA锟斤拷锟斤拷G锟絚C占全锟斤拷锟紸锟斤拷锟斤拷(sh锟斤拷)锟斤拷48%锟斤拷锟斤拷锟斤拷一锟絣模锟斤拷锟斤拷锟紺锟絚T锟街別占該鏈堿锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟斤拷26%锟斤拷24%锟斤拷锟斤拷锟斤拷锟斤拷锟紻(zhu锟斤拷n)錄碉拷RNA锟斤拷锟斤拷锟斤拷锟斤拷锟絚锟斤拷锟斤拷啶分別占锟紸锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟侥ｏ拷 锟斤拷

锟斤拷锟斤拷A锟斤拷24%锟斤拷22%

锟斤拷锟斤拷B锟斤拷28%锟斤拷26%

锟斤拷锟斤拷C锟斤拷28%锟斤拷22%

锟斤拷锟斤拷D锟斤拷48%锟斤拷52%

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟絵目锟斤拷锟斤拷RNA锟侥堿锟斤拷锟斤拷锟斤拷锟斤拷RNA锟斤拷锟斤拷DNA模锟斤拷鏈囷拷(y锟斤拷n)锟斤拷锟秸堿锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟紻(zhu锟斤拷n)錄讹拷锟斤拷锟斤拷锟斤拷锟絤然某锟絅锟紸锟斤拷锟斤拷锟絈锟斤拷變锟剿ｏ拷RNA锟叫沒锟斤拷锟斤拷锟斤拷锟斤拷锟�锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷啶ｏ拷锟斤拷锟斤拷锟戒對锟斤拷锟絇(gu锟斤拷n)系還锟角达拷锟节碉拷锟斤拷锟斤拷锟斤拷锟斤拷DNA锟斤拷锟斤拷锟斤拷G+C=48%锟斤拷锟絫A+T=52%锟斤拷锟斤拷(j锟斤拷)锟斤拷式锟斤拷锟斤拷知A锟斤拷+T锟斤拷=52%锟斤拷锟絆(sh锟斤拷)該模锟斤拷鏈烇拷锟斤拷鏈ｏ拷锟斤拷锟絫A锟斤拷=52%—24%=28%锟斤拷锟斤拷锟斤拷G锟斤拷+C锟斤拷=48%锟斤拷锟絫G锟斤拷=48%—26%=22%锟斤拷锟斤拷锟紻(zhu锟斤拷n)錄時(sh锟斤拷)锟斤拷A锟斤拷锟絚U锟戒對锟斤拷G锟斤拷锟絚C锟戒對锟斤拷锟絫RNA锟较碉拷U=28%锟斤拷C=22%锟斤拷锟绞答案烇拷C锟斤拷

锟斤拷锟斤拷锟斤拷5锟斤拷某锟斤拷息RNA锟侥堿锟斤拷锟斤拷锟斤拷U占20%锟斤拷A占10%锟斤拷锟絫锟斤拷锟斤拷锟斤拷锟斤拷模锟斤拷锟斤拷锟紻NA锟斤拷锟斤拷锟叫帮拷锟斤拷锟秸既�锟斤拷锟紸锟斤拷锟侥ｏ拷 锟斤拷

锟斤拷锟斤拷A锟斤拷70% B锟斤拷60% C锟斤拷35% D锟斤拷17.5%

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷息RNA锟斤拷锟斤拷A+U=10%+20%=30%锟斤拷锟絫G+C=70%锟斤拷锟斤拷锟斤拷(j锟斤拷)锟斤拷式锟斤拷锟斤拷锟斤拷知模锟斤拷锟斤拷锟紻NA锟斤拷锟斤拷锟斤拷也锟斤拷同锟接憋拷锟斤拷锟斤拷锟斤拷G+C=70%锟斤拷锟劫革拷锟斤拷(j锟斤拷)锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟斤拷锟斤拷知G=C锟斤拷锟絫C=锟斤拷G+C锟斤拷/2锟斤拷锟斤拷C= ×70%=35%锟斤拷锟缴此可得答案烇拷C锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷}锟酵的解法锟节猴拷锟节岋拷锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟斤拷锟斤拷锟斤拷锟剿斤拷锟斤拷锟节斤拷锟絵锟絕锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(j锟斤拷)锟絵目锟給锟斤拷锟斤拷锟斤拷知锟絣锟斤拷锟斤拷锟劫革拷锟斤拷(j锟斤拷)锟紸锟斤拷锟斤拷锟絘(b锟斤拷)锟戒對原锟絫锟斤拷前锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷l锟斤拷式锟斤拷锟斤拷锟斤拷锟叫堿锟斤拷锟斤拷锟斤拷锟斤拷計(j锟斤拷)锟姐問锟絵锟斤拷迎锟叫讹拷锟斤拷锟剿★拷

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟紷锟斤拷锟斤拷(g锟斤拷)锟絇(gu锟斤拷n)系式锟斤拷讉锟�(g锟斤拷)锟叫达拷锟斤拷锟皆碉拷锟絵目锟斤拷

锟斤拷锟斤拷1锟斤拷锟斤拷全锟斤拷锟竭匡拷試锟絵锟斤拷

锟斤拷锟斤拷DNA锟斤拷一锟斤拷(g锟斤拷)锟斤拷锟斤拷校锟紸+G锟斤拷/锟斤拷T+C锟斤拷锟斤拷0.4锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟戒互锟絘(b锟斤拷)鏈猴拷锟斤拷锟斤拷(g锟斤拷)DNA锟斤拷锟叫分別锟角ｏ拷锟斤拷

锟斤拷锟斤拷A锟斤拷0.4锟斤拷0.6 B锟斤拷2.5锟斤拷1.0

锟斤拷锟斤拷C锟斤拷0.4锟斤拷0.4 D锟斤拷0.6锟斤拷1.0

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷DNA锟斤拷锟斤拷锟斤拷A锟斤拷T锟斤拷锟斤拷T锟斤拷A锟斤拷C锟斤拷G锟斤拷锟斤拷G锟斤拷C锟斤拷锟斤拷锟斤拷(j锟斤拷)锟絵锟斤拷牡茫锟紸锟斤拷G锟斤拷/锟斤拷T锟斤拷C锟今）ｏ拷0.4锟斤拷锟斤拷么锟斤拷T锟斤拷C锟斤拷/锟斤拷A锟斤拷G锟津）ｏ拷0.4,锟斤拷锟斤拷A锟斤拷G锟斤拷/锟斤拷T锟斤拷C锟津）ｏ拷2.5锟斤拷锟斤拷?y锟斤拷n)锟紸锟斤拷=T锟斤拷锟斤拷G锟斤拷=C锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(g锟斤拷)DNA锟斤拷锟接侊拷锟絝锟斤拷A锟斤拷锟斤拷G锟斤拷锟斤拷/锟斤拷T锟斤拷锟斤拷C锟斤拷锟斤拷锟斤拷1.0锟斤拷

锟斤拷锟�锟斤拷鄞鸢福锟紹锟斤拷

锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷某锟斤拷锟斤拷锟斤拷p锟紻NA锟斤拷锟絣(f锟斤拷)锟紽(xi锟斤拷n)锟斤拷锟斤拷锟斤拷锟絚锟斤拷锟斤拷锟斤拷锟街�锟斤拷占全锟斤拷锟紸锟斤拷锟斤拷64锟斤拷锟斤拷锟斤拷锟斤拷一锟絣锟斤拷系锟斤拷锟斤拷锟斤拷锟秸荚擄拷全锟斤拷锟紸锟斤拷锟斤拷30锟斤拷锟斤拷锟絫锟斤拷锟斤拷(y锟斤拷ng)锟斤拷锟斤拷锟斤拷锟斤拷锟秸硷拷锟斤拷锟�(g锟斤拷)DNA锟斤拷锟接堿锟斤拷锟侥憋拷锟斤拷锟斤拷

锟斤拷锟斤拷A锟斤拷50% B锟斤拷34% C锟斤拷32% D锟斤拷17%

锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷知某锟斤拷锟斤拷锟斤拷p锟紻NA锟斤拷A+T占全锟斤拷锟紸锟斤拷锟斤拷锟斤拷锟斤拷64锟斤拷锟斤拷锟斤拷锟斤拷一锟絣锟斤拷系锟紸占該锟饺�锟斤拷锟紸锟斤拷锟斤拷30锟斤拷锟斤拷锟缴ｏ拷A锟斤拷锟斤拷T锟斤拷锟斤拷/DNA锟斤拷锟斤拷a%锟斤拷锟斤拷A锟斤拷T锟斤拷/锟今總ｏ拷a锟斤拷,锟缴碉拷T锟斤拷占锟斤拷锟饺�锟斤拷锟紸锟斤拷锟斤拷34锟斤拷锟斤拷锟斤拷锟斤拷T锟斤拷A锟斤拷DNA锟缴條鏈的堿锟斤拷锟斤拷(sh锟斤拷)目锟斤拷锟�锟斤拷锟斤拷锟皆岋拷锟斤拷(y锟斤拷ng)鏈�锟斤拷锟叫碉拷锟斤拷锟斤拷锟斤拷A锟斤拷占锟斤拷鏈堿锟斤拷锟斤拷34锟斤拷锟斤拷占锟斤拷锟斤拷(g锟斤拷)DNA锟斤拷锟接堿锟斤拷锟侥憋拷锟斤拷锟斤拷17锟斤拷锟斤拷

锟斤拷锟�锟斤拷鄞鸢福锟紻锟斤拷

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟斤拷锟斤拷锟斤拷前锟斤拷(zh锟斤拷n)锟斤拷锟斤拷锟竭匡拷锟紸(y锟斤拷)锟統锟斤拷志愿锟斤拷锟�(b锟斤拷o)锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷

锟斤拷锟斤拷锟竭匡拷锟絩(sh锟斤拷)锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚(di锟斤拷n)

锟斤拷锟斤拷锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號