Video: Dab tsi yog allele frequencies thiab xav tau genotype zaus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
allele zaus nyob rau hauv ib tug pej xeem yuav tsis hloov ntawm tiam mus rau tiam. yog tias allele zaus nyob rau hauv cov pej xeem nrog ob alleles ntawm qhov chaw yog p thiab q, ces tus xav tau genotype zaus yog p2,,2 q,ua2.
Nyob rau hauv no hais txog, yuav ua li cas koj nrhiav tau genotype zaus los ntawm allele zaus?
Hauv kev sib npaug ,ua p2 sawv cev rau zaus ntawm homozygous genotype aw, q2 sawv cev rau zaus ntawm homozygous genotype aa, thiab 2pq sawv cev rau zaus ntawm heterozygous genotype Aa. Tsis tas li ntawd, qhov sum ntawm cov allele zaus rau txhua tus alleles ntawm qhov chaw yuav tsum yog 1, yog li p + q = 1.
Ib tug kuj yuav nug, koj ua li cas txiav txim siab genotype zaus hauv Hardy Weinberg equilibrium? Rau txiav txim yog tias peb cov neeg peas yog nyob ntawm Hardy - Weinberg equilibrium , peb yuav tsum ntsaws peb qhov tseem ceeb ntawm p thiab q rau hauv kab zauv saum toj no thiab pom yog cov no genotype zaus phim cov uas peb pib xam. Yog cov pejxeem nyob hauv Hardy - Weinberg equilibrium , cov genotype zaus yuav tsum yog 0.49 AA, 0.42 Aa, thiab.
Kuj nug, dab tsi yog qhov xav tau genotype zaus?
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.
Dab tsi yog qhov txawv ntawm genotype thiab allele frequencies?
Cov allele zaus yog txawv ntawm cov genotype zaus , txawm tias lawv muaj feem cuam tshuam, thiab allele zaus tuaj yeem xam los ntawm genotype zaus . Hauv cov noob caj noob ces, allele zaus yog siv los piav txog qhov sib txawv ntawm ib qho chaw tshwj xeeb lossis hla ntau loci.
Pom zoo:
Dab tsi yog cov reagents xav tau rau PCR thiab dab tsi yog qhov ua haujlwm ntawm txhua tus?
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Dab tsi yog lub ntsiab lus ntawm kev hloov pauv lom neeg hauv cov ntsiab lus ntawm allele zaus?
Microevolution, los yog evolution ntawm ib tug me me, yog txhais raws li ib tug kev hloov nyob rau hauv lub zaus ntawm noob variants, alleles, nyob rau hauv ib tug pej xeem ntau tiam. Lub teb ntawm biology uas kawm txog allele frequencies nyob rau hauv cov pejxeem thiab yuav ua li cas lawv hloov lub sij hawm yog hu ua pej xeem noob caj noob ces
Dab tsi yog qhov xav tau genotype zaus?
Qhov 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
Henri Becquerel nrhiav tau dab tsi uas ua rau nws tau txais 1903 Nobel nqi zog Nws nrhiav tau dab tsi txog lub caij uranium?
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