Puas yog genotype ee heterozygous lossis homozygous?
Puas yog genotype ee heterozygous lossis homozygous?

Video: Puas yog genotype ee heterozygous lossis homozygous?

Video: Puas yog genotype ee heterozygous lossis homozygous?
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Hauv qhov piv txwv saum toj no hais txog pob ntseg, ob qho tib si EE thiab ua ee cov neeg yog homozygous rau qhov zoo. Tus neeg nrog lub Aw genotype yog heterozygous rau qhov zoo, qhov no, dawb earlobes. Ib tug neeg yog heterozygous rau qhov zoo thaum nws muaj ob hom allelic sib txawv ntawm ib qho gene.

Hauv qhov no, ua li cas koj thiaj paub yog tias tus genotype yog heterozygous lossis homozygous?

Yog tag nrho cov xeeb leej xeeb ntxwv los ntawm qhov kev ntsuam xyuas tus ntoo khaub lig tso saib phenotype tseem ceeb, tus neeg hauv nqe lus nug yog homozygous tseem ceeb; yog ib nrab ntawm cov xeeb leej xeeb ntxwv tso saib phenotypes thiab ib nrab zaub recessive phenotypes, ces tus neeg yog heterozygous.

Tsis tas li ntawd, dab tsi sawv cev rau genotype? genotype . Hauv kev nkag siab dav, lo lus " genotype " yog hais txog kev tsim cov caj ces ntawm lub cev; nyob rau hauv lwm yam lus, nws piav qhia txog lub cev tag nrho ntawm cov noob. sawv cev tus genotype ntawm ib tug tshwj xeeb gene. Piv txwv li, nyob rau hauv cov txiv hmab txiv ntoo qab zib, cov noob rau paj xim muaj ob alleles.

Kuj paub, yuav tsuas muaj phenotypic qhia ntawm tam sim no raws li homozygous genotype?

Thaum cov cab kuj muaj lub dominant/recessive genotype rau ib tug muab gene, lawv nkaus xwb qhia cov phenotype tshwm sim los ntawm qhov tseem ceeb ntawm cov noob ntawd. Kab mob ua tau ua homozygous los yog heterozygous rau gene. Homozygous txhais tau hais tias lub cev muaj ob daim ntawv theej ntawm tib allele rau ib lub noob.

Puas yog BB heterozygous lossis homozygous?

Yog tias ob lub alleles tau txais txiaj ntsig zoo ib yam, lawv tau sawv cev los ntawm ob tsab ntawv zoo ib yam, xws li BB los yog bb ua . Qhov no hu ua a homozygous genotype. Yog tias ob qho alleles txawv, xws li Bb , genotype yog heterozygous.

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