Dab tsi yog qhov yooj yim Mendelian zoo?
Dab tsi yog qhov yooj yim Mendelian zoo?

Video: Dab tsi yog qhov yooj yim Mendelian zoo?

Video: Dab tsi yog qhov yooj yim Mendelian zoo?
Video: yuav tau tsim kho tus kheej lub neej thiaj yuav vam meej tau 2024, Kaum ib hlis
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Mendelian yam ntxwv yog yam ntxwv uas tau dhau los ntawm qhov tseem ceeb thiab rov ua dua alleles ntawm ib lub noob. Alleles yog ntau hom noob, uas tsuas yog ib feem ntawm DNA uas nqa cov ntaub ntawv rau ib qho qhov zoo.

Yog li ntawd, dab tsi piav qhia txog Mendelian zoo?

Cov Mendelian zoo yog cov uas tswj tau ntawm ib lub gene locus. Cov Mendelian zoo muaj ob tug alleles (ib daim ntawv niam txiv), uas ib tug allele yog dominant thaum lwm tus yog recessive. Ib qho piv txwv ntawm tib neeg Mendelian zoo yog cov earlobes txuas los yog detached.

Qhov piv txwv ntawm tib neeg yog dab tsi? Cov yam ntxwv tuaj yeem ua lub cev zoo li cov plaub hau xim lossis cov duab thiab qhov loj ntawm nplooj ntoo. Cov yam ntxwv tuaj yeem ua tus cwj pwm xws li zes tsev tus cwj pwm hauv cov noog.

Ua li no, dab tsi yog qhov yooj yim?

Yooj yim-kuj yam ntxwv yog cov uas ib los yog ob peb cov noob tswj cov phenotype. Hauv yam ntxwv nrog ua tiav dominance, zoo li lub tsho tiv no xim, tus tsiaj xav tau tsuas yog ib qho ntawm cov tseem ceeb alleles los tso saib cov phenotype tseem ceeb. Ib tug tsiaj xav tau ob lub recessive alleles los tso saib cov phenotype recessive.

Puas yog qhov zoo tshaj plaws Mendelian?

Cov uas tau txais ib qho tseem ceeb allele los ntawm ib tug niam txiv thiab ib tug recessive allele los ntawm lwm tus niam txiv yuav muaj cov tseem ceeb ntawm cov qhov zoo . Ntshiab Mendelian yam ntxwv yog ib haiv neeg tsawg tsawg yam ntxwv , vim feem ntau phenotype yam ntxwv nthuav tawm tsis tiav dominance, codominance, thiab kev koom tes los ntawm ntau noob.

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