Nyob hauv snapdragons, paj xim yog tswj los ntawm tsis tiav dominance. Ob lub alleles yog liab (R) thiab dawb (R'). Lub heterozygous genotype tau qhia tias liab.
Puas yog snapdragon paj xim tsis tiav dominance?
Snapdragon kuj qhia tsis tiav dominance los ntawm kev tsim cov paj liab-xim snapdragon. Tus ntoo khaub lig-pollination ntawm liab thiab dawb snapdragons ua rau paj liab xim vim tsis muaj ib qho alleles (dawb thiab liab) yog qhov tseem ceeb.
Paj xim tau txais txiaj ntsig li cas hauv snapdragons?
Tus qub txeeg qub teg ntawm paj xim hauv snapdragons qhia txoj cai ntawm kev ua tsis tiav. Lub genotype RR tau qhia tias yog paj liab, Rr tawm paj paj yeeb, thiab rr ua paj dawb. Ua haujlwm tawm cov kab hauv qab no los txiav txim siab qhov xav tau phenotypes thiab ob qho tib si genotypic thiab phenotypic feem pua.
Dab tsi yog xim ntawm heterozygous snapdragon paj?
Snapdragon paj xim yog ib qho piv txwv ntawm kev ua tiav tsis tiav (tsis yog allele dominant). Thaum lub allele yog homozygous (AA) paj yog liab thiab thaum nws yog homozygous (aa) paj yog dawb. Txawm li cas los xij, thaum alleles yog Aa (heterozygous), cov paj yog pink.
Dab tsi yog genotype ntawm paj liab snapdragons?
Cov noob rau paj xim hauv snapdragons qhia txog kev ua tiav tsis tiav. Snapdragons homozygous rau allele rau liab paj xim muajlub genotype FRFR thiab muaj paj liab. Snapdragons homozygous rau cov allele rau xim paj dawb muaj cov genotype FWFW thiab muaj paj dawb.
