Cov plaub hau xim dab tsi yog cov noob caj noob ces?
Cov plaub hau xim dab tsi yog cov noob caj noob ces?

Video: Cov plaub hau xim dab tsi yog cov noob caj noob ces?

Video: Cov plaub hau xim dab tsi yog cov noob caj noob ces?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Raws li ib txoj kev xav, tsawg kawg yog ob lub noob caj noob ces tswj tib neeg cov plaub hau xim . Ib phenotype ( xim av / pojniam plaub hau daj ) muaj ib tug dominant xim av allele thiab recessive daj ntseg allele. Ib tug neeg nrog a xim av allele yuav muaj xim av plaub hau; tus neeg tsis muaj xim av alleles yuav daj ntseg.

Ib yam li ntawd, nws yog nug, cov plaub hau xim twg yog qhov tseem ceeb?

plaub hau xim av

Ib tug kuj nug, leej niam leej txiv twg txiav txim plaub hau xim? Thaum twg Cov plaub hau xim Yog Kev Txiav Txim Thaum cov phev ntsib lub qe thiab tsim mus rau hauv zygote, nws feem ntau nce 46 chromosomes. Qhov ntawd yog 23 ntawm leej niam thiab leej txiv. Txhua yam ntawm koj tus menyuam txoj kev caj ces - plaub hau xim , qhov muag xim , kev sib deev, thiab lwm yam - twb raug kaw nyob rau hauv no thaum ntxov theem.

Kuj nug, yog cov plaub hau tsaus nti lossis cov plaub hau teeb tseem ceeb?

Cov plaub hau tsaus yog a tseem ceeb qhov zoo, tawm tsam teeb plaub hau , uas yog recessive. Recessive txhais tau hais tias qhov zoo yuav tsuas qhia yog tias tsis muaj tseem ceeb muaj gene. Yog koj plaub hau yog pojniam plaub hau daj ces koj qhov zoo rau plaub hau yog recessive. Koj yuav tsis muaj noob rau cov plaub hau tsaus.

Cov plaub hau dab tsi yog qhov tseem ceeb tshaj?

Yog li ntawd ib tug dub plaub hau niam txiv nqa ib tug rov ua dua gene rau cov plaub hau daj tuaj yeem muaj peev xwm muaj cov menyuam daj yog tias cov noob tau nthuav tawm thiab sib xyaw nrog cov noob daj los ntawm lwm tus niam txiv. Raws li rau cov plaub hau liab, uas yog ib zaug xav txog rov ua dua , tam sim no nws ntseeg tau tias yog dominant dua blond.

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