醫(yī)學遺傳學多基因病課件

第五章多基因病第一節(jié)多基因遺傳與數量遺傳數量性狀與多基因假說質量性狀(qualitativecharacter)單基因遺傳中所涉及的遺傳性狀都是由對基因所控制,相對性狀之間的差別明顯,一個群體中的變異分布是不連續(xù)的,可將變異的個體明顯地區(qū)分為2~3組,沒有中間類型,這類性狀稱為質量性狀。第五章多基因病1圖1AA和Aaaa圖2aaAaAA圖1AA和Aa2數量性狀(quantitativecharacter)與上述的性狀不同,多基因遺傳性狀在個群體中變異的分布是連續(xù)的,呈正態(tài)分布,即大部分個體屬于中間類型,極端變異的個體極少,而且個體之間只有量的差別而沒有質的差別。即性狀變異在群體中的分布是連續(xù)的,不同個體間的差異只是量的差異,變異很小,稱為數量性狀(quantitativecharacter)數量性狀(quantitativecharacter)3醫(yī)學遺傳學多基因病課件4變員數0m004130140150160170180190200身高cm變員數5醫(yī)學遺傳學多基因病課件6醫(yī)學遺傳學多基因病課件7醫(yī)學遺傳學多基因病課件8醫(yī)學遺傳學多基因病課件9醫(yī)學遺傳學多基因病課件10醫(yī)學遺傳學多基因病課件11醫(yī)學遺傳學多基因病課件12醫(yī)學遺傳學多基因病課件13醫(yī)學遺傳學多基因病課件14醫(yī)學遺傳學多基因病課件15醫(yī)學遺傳學多基因病課件16醫(yī)學遺傳學多基因病課件17醫(yī)學遺傳學多基因病課件18醫(yī)學遺傳學多基因病課件19醫(yī)學遺傳學多基因病課件20醫(yī)學遺傳學多基因病課件21醫(yī)學遺傳學多基因病課件22醫(yī)學遺傳學多基因病課件23醫(yī)學遺傳學多基因病課件24醫(yī)學遺傳學多基因病課件25醫(yī)學遺傳學多基因病課件26醫(yī)學遺傳學多基因病課件27醫(yī)學遺傳學多基因病課件28醫(yī)學遺傳學多基因病課件29醫(yī)學遺傳學多基因病課件30醫(yī)學遺傳學多基因病課件31醫(yī)學遺傳學多基因病課件32醫(yī)學遺傳學多基因病課件33醫(yī)學遺傳學多基因病課件34醫(yī)學遺傳學多基因病課件35醫(yī)學遺傳學多基因病課件36醫(yī)學遺傳學多基因病課件37醫(yī)學遺傳學多基因病課件38醫(yī)學遺傳學多基因病課件39醫(yī)學遺傳學多基因病課件40醫(yī)學遺傳學多基因病課件41醫(yī)學遺傳學多基因病課件42醫(yī)學遺傳學多基因病課件43醫(yī)學遺傳學多基因病課件44醫(yī)學遺傳學多基因病課件45醫(yī)學遺傳學多基因病課件46醫(yī)學遺傳學多基因病課件47醫(yī)學遺傳學多基因病課件48醫(yī)學遺傳學多基因病課件49醫(yī)學遺傳學多基因病課件50醫(yī)學遺傳學多基因病課件51醫(yī)學遺傳學多基因病課件52醫(yī)學遺傳學多基因病課件53醫(yī)學遺傳學多基因病課件54醫(yī)學遺傳學多基因病課件55醫(yī)學遺傳學多基因病課件56醫(yī)學遺傳學多基因病課件57醫(yī)學遺傳學多基因病課件58醫(yī)學遺傳學多基因病課件59醫(yī)學遺傳學多基因病課件60醫(yī)學遺傳學多基因病課件61醫(yī)學遺傳學多基因病課件62醫(yī)學遺傳學多基因病課件63醫(yī)學遺傳學多基因病課件64醫(yī)學遺傳學多基因病課件65醫(yī)學遺傳學多基因病課件66醫(yī)學遺傳學多基因病課件67醫(yī)學遺傳學多基因病課件68醫(yī)學遺傳學多基因病課件69醫(yī)學遺傳學多基因病課件70醫(yī)學遺傳學多基因病課件71醫(yī)學遺傳學多基因病課件72醫(yī)學遺傳學多基因病課件73醫(yī)學遺傳學多基因病課件74醫(yī)學遺傳學多基因病課件75醫(yī)學遺傳學多基因病課件76醫(yī)學遺傳學多基因病課件77醫(yī)學遺傳學多基因病課件78醫(yī)學遺傳學多基因病課件79醫(yī)學遺傳學多基因病課件80醫(yī)學遺傳學多基因病課件81醫(yī)學遺傳學多基因病課件82醫(yī)學遺傳學多基因病課件83醫(yī)學遺傳學多基因病課件84醫(yī)學遺傳學多基因病課件85醫(yī)學遺傳學多基因病課件86醫(yī)學遺傳學多基因病課件87醫(yī)學遺傳學多基因病課件88醫(yī)學遺傳學多基因病課件89醫(yī)學遺傳學多基因病課件90醫(yī)學遺傳學多基因病課件91醫(yī)學遺傳學多基因病課件92醫(yī)學遺傳學多基因病課件93醫(yī)學遺傳學多基因病課件94醫(yī)學遺傳學多基因病課件95醫(yī)學遺傳學多基因病課件96醫(yī)學遺傳學多基因病課件97醫(yī)學遺傳學多基因病課件98醫(yī)學遺傳學多基因病課件99醫(yī)學遺傳學多基因病課件100醫(yī)學遺傳學多基因病課件101醫(yī)學遺傳學多基因病課件102醫(yī)學遺傳學多基因病課件103醫(yī)學遺傳學多基因病課件104醫(yī)學遺傳學多基因病課件105醫(yī)學遺傳學多基因病課件106醫(yī)學遺傳學多基因病課件107醫(yī)學遺傳學多基因病課件108醫(yī)學遺傳學多基因病課件109醫(yī)學遺傳學多基因病課件110醫(yī)學遺傳學多基因病課件111醫(yī)學遺傳學多基因病課件112醫(yī)學遺傳學多基因病課件113醫(yī)學遺傳學多基因病課件114醫(yī)學遺傳學多基因病課件115醫(yī)學遺傳學多基因病課件116醫(yī)學遺傳學多基因病課件117醫(yī)學遺傳學多基因病課件118醫(yī)學遺傳學多基因病課件119醫(yī)學遺傳學多基因病課件120醫(yī)學遺傳學多基因病課件121第五章多基因病第一節(jié)多基因遺傳與數量遺傳數量性狀與多基因假說質量性狀(qualitativecharacter)單基因遺傳中所涉及的遺傳性狀都是由對基因所控制,相對性狀之間的差別明顯,一個群體中的變異分布是不連續(xù)的,可將變異的個體明顯地區(qū)分為2~3組,沒有中間類型,這類性狀稱為質量性狀。第五章多基因病122圖1AA和Aaaa圖2aaAaAA圖1AA和Aa123數量性狀(quantitativecharacter)與上述的性狀不同,多基因遺傳性狀在個群體中變異的分布是連續(xù)的,呈正態(tài)分布,即大部分個體屬于中間類型,極端變異的個體極少,而且個體之間只有量的差別而沒有質的差別。即性狀變異在群體中的分布是連續(xù)的,不同個體間的差異只是量的差異,變異很小,稱為數量性狀(quantitativecharacter)數量性狀(quantitativecharacter)124醫(yī)學遺傳學多基因病課件125變員數0m004130140150160170180190200身高cm變員數126醫(yī)學遺傳學多基因病課件127醫(yī)學遺傳學多基因病課件128醫(yī)學遺傳學多基因病課件129醫(yī)學遺傳學多基因病課件130醫(yī)學遺傳學多基因病課件131醫(yī)學遺傳學多基因病課件132醫(yī)學遺傳學多基因病課件133醫(yī)學遺傳學多基因病課件134醫(yī)學遺傳學多基因病課件135醫(yī)學遺傳學多基因病課件136醫(yī)學遺傳學多基因病課件137醫(yī)學遺傳學多基因病課件138醫(yī)學遺傳學多基因病課件139醫(yī)學遺傳學多基因病課件140醫(yī)學遺傳學多基因病課件141醫(yī)學遺傳學多基因病課件142醫(yī)學遺傳學多基因病課件143醫(yī)學遺傳學多基因病課件144醫(yī)學遺傳學多基因病課件145醫(yī)學遺傳學多基因病課件146醫(yī)學遺傳學多基因病課件147醫(yī)學遺傳學多基因病課件148醫(yī)學遺傳學多基因病課件149醫(yī)學遺傳學多基因病課件150醫(yī)學遺傳學多基因病課件151醫(yī)學遺傳學多基因病課件152醫(yī)學遺傳學多基因病課件153醫(yī)學遺傳學多基因病課件154醫(yī)學遺傳學多基因病課件155醫(yī)學遺傳學多基因病課件156醫(yī)學遺傳學多基因病課件157醫(yī)學遺傳學多基因病課件158醫(yī)學遺傳學多基因病課件159醫(yī)學遺傳學多基因病課件160醫(yī)學遺傳學多基因病課件161醫(yī)學遺傳學多基因病課件162醫(yī)學遺傳學多基因病課件163醫(yī)學遺傳學多基因病課件164醫(yī)學遺傳學多基因病課件165醫(yī)學遺傳學多基因病課件166醫(yī)學遺傳學多基因病課件167醫(yī)學遺傳學多基因病課件168醫(yī)學遺傳學多基因病課件169醫(yī)學遺傳學多基因病課件170醫(yī)學遺傳學多基因病課件171醫(yī)學遺傳學多基因病課件172醫(yī)學遺傳學多基因病課件173醫(yī)學遺傳學多基因病課件174醫(yī)學遺傳學多基因病課件175醫(yī)學遺傳學多基因病課件176醫(yī)學遺傳學多基因病課件177醫(yī)學遺傳學多基因病課件178醫(yī)學遺傳學多基因病課件179醫(yī)學遺傳學多基因病課件180醫(yī)學遺傳學多基因病課件181醫(yī)學遺傳學多基因病課件182醫(yī)學遺傳學多基因病課件183醫(yī)學遺傳學多基因病課件184醫(yī)學遺傳學多基因病課件185醫(yī)學遺傳學多基因病課件186醫(yī)學遺傳學多基因病課件187醫(yī)學遺傳學多基因病課件188醫(yī)學遺傳學多基因病課件189醫(yī)學遺傳學多基因病課件190醫(yī)學遺傳學多基因病課件191醫(yī)學遺傳學多基因病課件192醫(yī)學遺傳學多基因病課件193醫(yī)學遺傳學多基因病課件194醫(yī)學遺傳學多基因病課件195醫(yī)學遺傳學多基因病課件196醫(yī)學遺傳學多基因病課件197醫(yī)學遺傳學多基因病課件198醫(yī)學遺傳學多基因病課件199醫(yī)學遺傳學多基因病課件200醫(yī)學遺傳學多基因病課件201醫(yī)學遺傳學多基因病課件202醫(yī)學遺傳學多基因病課件203醫(yī)學遺傳學多基因病課件204醫(yī)學遺傳學多基因病課件205醫(yī)學遺傳學多基因病課件206醫(yī)學遺傳學多基因病課件207醫(yī)學遺傳學多基因病課件208醫(yī)學遺傳學多基因病課件209醫(yī)學遺傳學多基因病課件210醫(yī)學遺傳學多基因病課件211醫(yī)學遺傳學多基因病課件212醫(yī)學遺傳學多基因病課件213醫(yī)學遺傳學多基因病課件214醫(yī)學遺傳學多基因病課件215醫(yī)學遺傳學多基因病課件216醫(yī)學遺傳學多基因病課件217醫(yī)學遺傳學多基因病課件218醫(yī)學遺傳學多基因病課件219醫(yī)學遺傳學多基因病課件220醫(yī)學遺傳學多基因病課件221醫(yī)學遺傳學多基因病課件222醫(yī)學遺傳學多基因病課件223醫(yī)學遺傳學多基因病課件224醫(yī)學遺傳學多基因病課件225醫(yī)學遺傳學多基因病課件226醫(yī)學遺傳學多基因病課件227醫(yī)學遺傳學多基因病課件