Video: Dab tsi genotype yog siv nyob rau hauv kev sim hla?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Xeem hla yog siv rau xeem tus kheej 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 . Cov tib neeg uas qhia qhov tseem ceeb phenotype, txawm li cas los xij, tej zaum yuav yog homozygous dominant lossis heterozygous.
Tib neeg kuj nug tias, piv txwv li cas tus ntoo khaub lig xeem?
Hauv ib xeem , tus neeg uas tsis paub genotype yog hla nrog ib tus neeg homozygous recessive (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.
Tom qab ntawd, lo lus nug yog, koj ua li cas txiav txim siab txog genotype? genotype = cov noob ntawm lub cev; rau ib qho tshwj xeeb peb siv ob tsab ntawv los sawv cev rau genotype . Ib tsab ntawv loj sawv cev rau daim ntawv tseem ceeb ntawm cov noob (allele), thiab tsab ntawv me yog cov ntawv luv rau daim ntawv ntawm cov noob (allele).
Hais txog qhov no, Testcross hauv biology yog dab tsi?
Kev kho mob txhais ntawm xeem : ib qho genetic cross ntawm homozygous recessive tus neeg thiab ib tug coj xav tias heterozygote los txiav txim lub genotype ntawm tom kawg.
Koj ua tus ntoo khaub lig xeem li cas?
Nyob rau hauv thiaj li yuav teeb tsa koj xeem hla , koj yuav tsum xub paub hais tias tus txiv neej ya muaj ib qho ntawm ob lub genotypes: Ee lossis EE. Vim hais tias tus txiv neej nthuav tawm lub cev xim phenotype tseem ceeb, koj yuav tsum ntoo khaub lig nws nrog ib tug poj niam nrog homozygous recessive phenotype thiab genotype.
Pom zoo:
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