Piv txwv ntawm cov noob caj noob ces: cov pejxeem ntawm luav nrog alleles B thiab b, ob leeg alleles muaj nyob rau hauv qhov sib npaug p=0.5 thiab q=0.5 yog tias 10 niam txiv rov tsim dua qhov tshwm sim ntawm muaj ib tug me nyuam nrog alleles B los yog b yog 0.5; Txawm li cas los xij, los ntawm lub sijhawm, qhov sib txawv me ntsis ntawm cov xeeb ntxwv allele zaus yuav tshwm sim vim…
Yuav ua li cas yog 2 yam piv txwv ntawm noob caj noob ces?
Ob hom kab mob caj ces yog tus tsim cov nyhuv thiab cov nyhuv fwj.
piv txwv ntawm drift yog dab tsi?
Noun huab cua qeebThaum nws laus lawm, koj tuaj yeem pom qhov ntws ntawm nws qhov kev sau ntawv mus rau cov ncauj lus loj dua. tsoom fwv drift mus rau ib tug centralization ntawm lub hwj chim Verb Lub nkoj maj mam drifted tawm mus rau lub hiav txwv. Cov huab tau ntws hla saum ntuj. Daus daus tawm tsam sab tsev.
Dab tsi tuaj yeem ua rau cov piv txwv genetic drift?
Random drift yog tshwm sim los ntawm qhov tshwm sim ntawm cov pej xeem me me, kev txo qis hauv cov pej xeem loj hu ua "bottlenecks" thiab tsim cov xwm txheej uas cov pej xeem tshiab pib los ntawm cov tib neeg tsawg. Genetic drift ua rau txhawm rau kho cov alleles lossis genotypes hauv cov pejxeem
Koj piav qhia caj ces dab tsi?
Genetic drift piav qhia random fluctuations nyob rau hauv tus lej ntawm cov noob variants nyob rau hauv ib tug pejxeem Genetic drift tshwm sim thaum qhov tshwm sim ntawm variant hom ntawm ib tug gene, hu ua alleles, nce thiab txo los ntawm caij nyoog dhau sijhawm. Cov kev hloov no nyob rau hauv lub xub ntiag ntawm alleles yog ntsuas raws li kev hloov nyob rau hauv allele frequencies.
