Tsis muaj, tsis tuaj yeem muaj heterozygous recessive xeev . Ib qho kev zoo lossis tus yam ntxwv yog txiav txim siab los ntawm cov noob uas muaj nyob rau hauv ob hom kev xaiv hu ua alleles, ib qho yog dominant allele dominant allele Dominance yog kev sib raug zoontawm ob alleles ntawm cov noob thiab lawv cov phenotypes txuam nrog . A "dominant " allele yog dominant rau ib qho allele ntawm tib lub noob uas tuaj yeem suav tau los ntawm cov ntsiab lus, tab sis nws yuav raug cuam tshuam rau ib qho thib peb allele, thiab codominant mus rau plaub. https://en.wikipedia.org › wiki › Dominance_(genetics)
Dominance (genetics) - Wikipedia
thiab lwm yam yog recessive allele.
Puas yog genotype ua heterozygous recessive?
Ib yam kab mob nrog ib qho tseem ceeb allele thiab ib qho allele recessiveyog hais tias muaj ib hom kab mob heterozygous. Hauv peb qhov piv txwv, qhov genotype no tau sau Bb. Thaum kawg, lub genotype ntawm cov kab mob nrog ob lub recessive alleles hu ua homozygous recessive.
Puas heterozygous txhais tau tias recessive?
Heterozygous txhais tau hais tias ib lub cev muaj ob qhov sib txawv ntawm cov noob. Piv txwv li, cov txiv laum huab xeeb tuaj yeem muaj paj liab thiab yog homozygous dominant (liab-liab), lossis heterozygous (liab-dawb). Yog lawv muaj paj dawb ces lawv yog homozygous recessive(dawb-dawb). Cov cab kuj ib txwm heterozygous.
Vim li cas ho tsis muajheterozygous recessive genotype?
Ib tug neeg uas yog heterozygous, hetero txhais tau tias lwm yam txawv. Yog li koj yuav tsum muaj ob qhov sib txawv. Yog vim li cas koj tsis hais heterozygous dominant los yog heterozygous recessive vim koj tsuas muaj loj r me r.
Puas yog tus genotype heterozygous qhia txog qhov tseem ceeb lossis cov phenotype recessive?
Mendel tau pom tias cov xeeb ntxwv heterozygote tuaj yeem qhia tib yam phenotype raws li niam txiv homozygote, yog li nws tau txiav txim siab tias muaj qee qhov kev coj cwj pwm uas tau ua rau lwm yam qub txeeg qub teg. Txawm li cas los xij, kev sib raug zoo ntawm genotype rau phenotype tsis tshua yooj yim li cov qauv tseem ceeb thiab rov ua duapiav qhia los ntawm Mendel.
