Abstract. Kev ua tsis tiav tau tshwm sim los ntawm tus ntoo khaub lig uas txhua qhov kev pab cuam niam txiv yog cov caj ces tshwj xeeb thiab ua rau cov menyuam yaus uas nws cov phenotype yog nruab nrab. Tsis tiav dominance kuj yog hu ua semi-dominance thiab ib nrab dominance. Mendel piav txog kev tswj hwm tab sis tsis ua tiav kev tswj hwm.
Yuav ua li cas tsis tiav dominance nrog piv txwv?
Qhov kev ua tsis tiav yog raug xa mus rau qhov kev hloov pauv ntawm qhov tseem ceeb ntawm allele nrog kev hwm rau cov allele recessive, uas ua rau muaj qhov tshiab heterozygous phenotype. Piv txwv li,liab dawb ntawm paj(xws li snapdragons lossis plaub teev paj), cov plaub hau, qhov loj me, lub suab ntawm tib neeg.
Dab tsi yog txhais ntawm kev ua tsis tiav?
Abstract. Kev ua tsis tiav tau tshwm sim los ntawm tus ntoo khaub lig uas txhua qhov kev pab cuam niam txiv yog cov caj ces tshwj xeeb thiab ua rau cov menyuam yaus uas nws cov phenotype yog nruab nrab. Tsis tiav dominance kuj tseem hu ua semi-dominance thiab ib nrab dominance.
Dab tsi yog kev tswj hwm thiab kev tswj tsis tiav?
Hauv kev ua tiav, tsuas yog ib qho allele hauv genotype pom hauv phenotype. … Hauv kev ua tsis tiav, kev sib xyaw ntawm cov alleles hauv genotype yog pom hauv phenotype.
Dab tsi yog qhov kev ua tiav tsis tiav piav nrog piv txwv chav kawm 12?
Piv txwv ntawm kev ua tsis tiav: ->Cross pollination ntawm liab snapdragon thiab dawb snapdragon tshwm simhauv paj yeeb snapdragon. ->Ntawm no, tsis yog cov dawb allele lossis liab allele yog qhov tseem ceeb. -> Cov xim liab liab tshwm sim los ntawm kev sib xyaw ntawm ob qho alleles uas yog dawb allele los yog dawb thiab liab allele.
