Qhov sib txawv tseem ceeb ntawm phenotype thiab genotype piv yog tias qhov sib piv phenotype yog tus txheeb ze tus lej lossis tus qauv ntawm cov xeeb leej xeeb ntxwv qhia qhov pom ntawm ib qho kev zoo thaum lub genotype piv yog tus qauv ntawm cov xeeb ntxwv faib raws li qhov genetic Constitution.
Phenotype thiab genotype yog ob nqe lus uas siv los piav txog cov yam ntxwv ntawm cov kab mob hauv cov caj ces. Cov ntsiab lus no pab piav qhia txog qhov zoo li cas tau txais txiaj ntsig thiab lawv yuav raug hloov pauv li cas. Yog hais tias xav txog ib qho kev zoo nkauj lossis tus yam ntxwv, phenotype yog hais txog lub cev qhia lossis cov yam ntxwv pom thaum lub genotype hais txog cov noob caj noob ces los yog cov noob caj noob ces lub luag haujlwm rau tus yam ntxwv. Ob lub ntsiab lus immensely pab rau txoj kev kawm ntawm qub txeeg qub teg ntawm qhov zoo. Genotype sib sau ua ke nrog cov xwm txheej ib puag ncig cuam tshuam rau phenotype ntawm qhov zoo. Hauv cov lus yooj yooj yim, cov noob yog lub luag haujlwm rau kev saib pom ntawm tus cwj pwm nrog me ntsis cuam tshuam ntawm ib puag ncig. Thaum koj ua tus ntoo khaub lig ntawm ob tus neeg, qhov tshwm sim ntawm cov pej xeem tuaj yeem raug tshuaj xyuas rau qhov phenotype piv thiab genotype ratio.
YPhenotype Ratio yog dab tsi?
Phenotype yog tus yam ntxwv pom tau ntawm cov kab mob. Nws yog lub cev qhia qhov uas peb pom. Qhov peb saib yog qhov tseem ceeb ntawm kev sib koom ua ke ntawm cov genotype thiab cov xwm txheej ib puag ncig, vim tias cov genotype ua ke nrog cov xwm txheej ib puag ncig txiav txim siab pom tus yam ntxwv.
Daim duab 01: Phenotypic Ratio
Genotype lossis cov caj ces muaj pes tsawg leeg codes qhov zoo ntawm phenotype. Tus qauv ntawm lub cev qhia ntawm cov xeeb ntxwv rau ib tug zoo yog peb hu ua phenotypic ratio. Xav txog cov piv txwv nram qab no d=shown in daim duab 01. Tus phenotypic ratio yog 9:3:3:1.
Dab tsi yog Genotype Ratio?
Genotype yog cov tshuaj pleev ib ce ntawm cov kab mob uas ua raws li qhov tshwj xeeb lossis qhov zoo. Nws suav nrog cov noob uas tau txais cov ntaub ntawv caj ces los ntawm niam txiv mus rau cov xeeb ntxwv. Yog li, feem ntau ntawm cov noob muaj nyob ua ob lub alleles. Yog li ntawd, nws tuaj yeem yog ob qho tseem ceeb alleles, ob qho tib si recessive los yog ob qho tib si ua ke. Raws li qhov tshwm sim ntawm tus ntoo khaub lig ntawm ob genotypes, cov xeeb ntxwv tau txais cov ntaub ntawv caj ces los ntawm lawv niam lawv txiv. Thaum txheeb xyuas tus qauv ntawm cov caj ces kev cai lij choj ntawm cov xeeb leej xeeb ntxwv, nws qhia txog genotype piv.
Vim li no, daim duab hauv qab no piav qhia txog genotype piv zoo.
Daim duab 02: Genotype piv yog 1: 2: 1 (TT=25%, Tt=50%, tt=25%) thiab Phenotype piv yog 3: 1 (siab: luv)
Dab tsi yog qhov zoo sib xws ntawm Phenotype thiab Genotype Ratio?
- Phenotype thiab Genotype Ratio yog ob nqe lus siv hauv cov noob caj noob ces.
- Lawv pab kawm txog qhov qub txeeg qub teg ntawm qhov zoo thiab lawv qhov kev hloov pauv.
- Tsis tas li, ob qho tib si yog cov qauv hauv caj ces.
- Tsis tas li ntawd, lawv muaj feem cuam tshuam rau ib leeg txij li genotype cuam tshuam rau phenotype.
Qhov txawv ntawm Phenotype thiab Genotype ratio yog dab tsi?
Qhov piv ntawm cov xeeb ntxwv ntawm cov pej xeem rau cov yam ntxwv pom tau yog qhov sib piv phenotype. Ntawm qhov tod tes, qhov sib piv ntawm cov tshuaj pleev ib ce ntawm cov neeg xeeb ntxwv yog qhov sib piv ntawm genotype. Qhov no yog qhov sib txawv tseem ceeb ntawm phenotype thiab genotype piv. Yog li ntawd, ob qho tib si muaj txiaj ntsig hauv kev tshawb nrhiav caj ces.
Cov hauv qab no infographic nthuav tawm qhov sib txawv ntawm phenotype thiab genotype piv rau hauv daim ntawv tabular.
Summary – Phenotype vs Genotype Ratio
Phenotype yog hais txog lub cev qhia thaum genotype hais txog kev cai caj ces. Tom qab tus ntoo khaub lig ntawm ob tus neeg, tus qauv ntawm kev nthuav qhia pom tus yam ntxwv ntawm cov neeg xeeb ntxwv yog qhov sib piv phenotype. Ntawm qhov tod tes, tus qauv ntawm cov tshuaj pleev ib ce ntawm cov xeeb leej xeeb ntxwv yog qhov piv ntawm genotype. Phenotype piv txawv ntawm qhov genotype piv rau feem ntau. Txawm li cas los xij, muaj qee qhov xwm txheej uas lawv zoo sib xws. Tsis tiav dominance thiab co-dominance yog ob lub sijhawm zoo li no. Yog li, qhov no yog qhov txawv ntawm phenotype thiab genotype piv.
