Cov txheej txheem:

Dab tsi yog Codominance hauv cov noob caj noob ces tsis yog Mendelian?
Dab tsi yog Codominance hauv cov noob caj noob ces tsis yog Mendelian?

Video: Dab tsi yog Codominance hauv cov noob caj noob ces tsis yog Mendelian?

Video: Dab tsi yog Codominance hauv cov noob caj noob ces tsis yog Mendelian?
Video: Kho caj kho cev by Celesna Lor 2024, Kaum ib hlis
Anonim

Thaum cov alleles rau ib qho kev zoo tus thawj tswj hwm , lawv ob leeg tau qhia sib npaug es tsis yog ib qho tseem ceeb allele noj kev tswj kom tiav ntawm ib qho allele recessive. Qhov no txhais tau hais tias thaum lub cev muaj ob qho sib txawv alleles (piv txwv li, yog heterozygote), nws yuav qhia ob qho tib si tib lub sijhawm.

Hauv qhov no, dab tsi yog qhov tsis yog Mendelian txoj kev xav ntawm kev qub txeeg qub teg?

Tsis yog - Mendelian qub txeeg qub teg yog tej qauv ntawm qub txeeg qub teg nyob rau hauv uas traits tsis cais raws li Mendel cov kev cai. Cov cai no piav txog qhov qub txeeg qub teg ntawm cov yam ntxwv txuas rau tib cov noob ntawm chromosomes hauv lub nucleus.

Tsis tas li ntawd, qhov txawv ntawm Mendelian noob caj noob ces thiab tsis yog Mendelian noob caj noob ces? Mendelian Cov cwj pwm zoo yog cov yam ntxwv uas tau dhau los ntawm qhov tseem ceeb thiab qhov tsis zoo ntawm ib lub noob. Tsis yog - Mendelian Cov yam ntxwv tsis yog txiav txim siab los ntawm cov tseem ceeb lossis cov khoom lag luam recessive, thiab lawv tuaj yeem koom nrog ntau tshaj ib lub noob.

Nyob rau hauv txoj kev no, dab tsi yog cov piv txwv ntawm tsis yog Mendelian qub txeeg qub teg?

Tsis-Mendelian Inheritance

  • Codominance. Lub paj muaj liab thiab dawb petals vim codominance ntawm liab-petal thiab dawb-petal alleles.
  • Tsis tiav Dominance. Lub paj muaj paj yeeb vim tsis tiav dominance ntawm liab-petal allele thiab ib tug recessive dawb-petal allele.
  • Tib neeg qhov siab.

Dab tsi yog ob hom kev tsis yog Mendelian qub txeeg qub teg?

Feem ntau, thiaj li hu ua tsis yog - Mendelian qub txeeg qub teg tuaj yeem raug ntaus nqi rau qhov nyuaj ntawm cov noob muaj nuj nqi, tsis yog kev sib kis ntawm cov noob. Yog li, tsis tiav penetrance, polygenic qub txeeg qub teg , thiab sib txawv ntawm kev nthuav qhia txhua yam tshwm sim forms tsis - Mendelian qub txeeg qub teg rau thaum ntxov geneticists.

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