Video: Dab tsi yog qhov xav tau genotype zaus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov xav tau genotype zaus . Teb: Zoo, AA = p2 = (0.355)2 = 0,126; Aa = 2(p)(q) = 2(0.355)(0.645) = 0.458; thiab thaum kawg aa = q2 = (0.645)2 = 0.416 (koj twb paub qhov no los ntawm ntu A saum toj no). Tus naj npawb ntawm cov neeg heterozygous uas koj yuav kwv yees yuav nyob hauv cov neeg no.
Ib yam li ntawd, tib neeg nug, koj ua li cas xam cov noob zaus?
Allele zaus hais txog yuav ua li cas ib qho allele yog nyob rau hauv cov pejxeem. Nws yog txiav txim los ntawm kev suav pes tsawg zaus tus allele tshwm nyob rau hauv cov pej xeem ces faib los ntawm tag nrho cov luam ntawm cov noob.
Tsis tas li ntawd, nws puas tuaj yeem ua rau cov pej xeem genotype zaus hloov pauv? allele zaus hauv a pej xeem yuav tsis hloov ntawm tiam mus rau tiam. yog allele zaus hauv a pej xeem nrog ob alleles ntawm ib qho chaw yog p thiab q, ces qhov kev cia siab genotype zaus yog p2,,2 q,ua2. Yog tias tsuas muaj ob lub alleles ntawm ib qho chaw, ces p + q, los ntawm kev ua lej, sib npaug ib qho.
Tom qab ntawd, lo lus nug yog, ua li cas koj pom qhov genotype zaus ntawm ib tiam tom ntej?
Generalize: yog hais tias tus allele zaus yog p thiab q, ces ntawm Hardy-Weinberg Equilibrium koj yuav muaj (p + q) X (p + q) = p2 + 2 npq + q2 raws li kev faib ntawm cov genotypes . Cov zaus ntawm AA tus neeg yuav p2. Cov zaus ntawm cov neeg Aa yuav yog 2pq. Cov zaus ntawm aa tus neeg yuav q2.
Yuav ua li cas koj txiav txim siab ib tug genotype?
Genotype zaus nyob rau hauv ib tug pej xeem yog tus naj npawb ntawm cov neeg uas muab genotype muab faib los ntawm tag nrho cov neeg ntawm cov neeg. Hauv cov noob caj noob ces, cov genotype zaus yog qhov zaus los yog kev faib ua feem (piv txwv li, 0 <f <1) ntawm genotypes hauv cov pejxeem.
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