Si aad u hesho jawaabta su'aasha ah ka dibna in luqadda la mid ah sida marinka: Passage: Evolution ee noolaha dhacdaa iyada oo loo marayo isbedelka sifooyinka dhaxalka ah <unk>the sifooyinka dhaxalka ah ee noolaha. In aadanuhu, tusaale ahaan, midabka indhaha waa sifo dhaxalka ah iyo shakhsi dhaxli laga yaabaa in "dabeecadda brown-indhaha" ka mid ah waalidiinta ay. sifooyinka dhaxalka ah waxaa gacanta ku hayaan hiddo iyo set dhamaystiran ee hiddo gudahood hiddo ee noolaha ee (qalabka hiddo) waxaa loo yaqaan ay genotype. set dhamaystiran ee sifooyinka la arki karo in ay sameeyaan qaab dhismeedka iyo hab-dhaqanka ee noolaha waxaa loo yaqaan ay phenotype. sifooyinka Kuwan ka yimaadaan isdhexgalka ee ay genotype la deegaanka. Sidaa darteed, dhinacyo badan oo ka mid ah phenotype noolaha ee phenotype aan la dhaxli. Tusaale ahaan, maqaarka suntan yimaado isdhexgalka u dhexeeya qof ee genotype iyo
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