Yuav ua li cas thiaj ua tau tus ntoo khaub lig?
Yuav ua li cas thiaj ua tau tus ntoo khaub lig?

Video: Yuav ua li cas thiaj ua tau tus ntoo khaub lig?

Video: Yuav ua li cas thiaj ua tau tus ntoo khaub lig?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

Xeem hla siv los xeem ib tug neeg tus genotype los ntawm hla nws nrog ib tug neeg ntawm ib tug paub genotype. Cov tib neeg uas qhia txog cov phenotype recessive yog paub tias muaj homozygous recessive genotype. Lub phenotypically dominant kab mob yog tus neeg hauv nqe lus nug hauv a xeem hla.

Tsis tas li ntawd, qhov kev xeem hla nrog piv txwv yog dab tsi?

Hauv ib xeem , tus neeg uas tsis paub genotype raug hla nrog homozygous recessive tus neeg (Daim duab hauv qab). Xav txog cov hauv qab no piv txwv : Piv txwv tias koj muaj paj liab thiab dawb thiab xim liab (P) yog qhov tseem ceeb rau dawb (p). A xeem yuav txiav txim siab lub cev lub genotype.

Ib yam li ntawd, lub ntsiab lus ntawm kev xeem tus ntoo khaub lig yog dab tsi? Kev kho mob txhais ntawm xeem : ib genetic ntoo khaub lig nruab nrab ntawm ib tug neeg homozygous recessive thiab ib tug coj xav tias heterozygote los txiav txim lub genotype ntawm tom kawg.

Dab tsi yog qhov tseem ceeb ntawm kev sim hla?

A xeem hla zoo nkauj tseem ceeb nyob rau hauv cov noob caj noob ces raws li nws pab koj txiav txim siab ib tug tsis paub genotype. Hauv ib xeem hla , homozygous recessive (ob leeg alleles zoo ib yam) tus neeg yog hla nrog ib tus neeg uas tsis paub genotype, nthuav tawm qhov tseem ceeb phenotype.

Ib qho piv txwv ntawm Monohybrid ntoo khaub lig yog dab tsi?

Kev yug me nyuam ntev-stemmed pea cog nrog luv-stemmed pea cog yog ib qho piv txwv li ntawm tus ntoo khaub lig monohybrid . A ntoo khaub lig nruab nrab ntawm ob tsim heterozygous offsprings.

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