Yuav ua li cas koj paub yog tias nws yog Codominance los yog tsis tiav dominance?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Hauv tsis tiav dominance tus neeg heterozygous sib xyaw ob qhov zoo. Nrog codominance koj yuav saib ob leeg alleles qhia lawv cov teebmeem tab sis tsis blending whereas nrog tsis tiav dominance koj saib ob qho tib si alleles tab sis lawv tau raug muab sib xyaw.

Ntawm no, koj tuaj yeem qhia qhov txawv ntawm qhov tsis tiav dominance thiab Codominance?

Tsis tiav dominance yog thaum cov phenotypes ntawm ob niam txiv sib xyaw ua ke los tsim cov phenotype tshiab rau lawv cov xeeb ntxwv. Ib qho piv txwv yog paj dawb thiab paj liab ua paj liab. Codominance yog thaum ob niam txiv phenotypes qhia ua ke hauv xeeb.

Ib sab saum toj no, qhov twg yog qhov piv txwv ntawm kev ua tsis tiav? Thaum ib tug niam txiv nrog cov plaub hau ncaj thiab ib tug nrog cov plaub hau curly muaj ib tug me nyuam nrog wavy plaub hau, uas yog ib tug piv txwv ntawm tsis tiav dominance . Qhov muag xim feem ntau raug suav hais tias yog ib qho piv txwv ntawm tsis tiav dominance.

Ntawm no, koj yuav ua li cas paub yog tias tsis tiav dominance?

Yog tias phenotype yog "liab" ces r allele yog tseem ceeb rau b. Yog tias phenotype yog "xiav" ces b allele yog tseem ceeb rau r. Yog tias phenotype yog "liab" ces cov alleles qhia tsis tiav dominance . Yog tias phenotype muaj qee hom hlwb "liab" thiab lwm tus "xiav" ces cov alleles qhia codominance.

Codominance yog dab tsi?

Codominance tshwm sim thaum ob versions, los yog "alleles," ntawm tib lub noob muaj nyob rau hauv ib tug muaj sia nyob, thiab ob qho tib si qhia. Hloov ntawm ib qho kev coj ua tseem ceeb tshaj lwm tus, ob qho tib si tshwm sim. A thiab B alleles rau hom ntshav tuaj yeem qhia tau tib lub sijhawm, ua rau hom AB ntshav.