Kev tsis txaus ntseeg, hauv cov noob caj noob ces, qhov tsis ua tiav ntawm ib khub ntawm cov noob caj noob ces (alleles) tam sim no hauv tus neeg los qhia nws tus kheej hauv kev saib xyuas vim muaj kev cuam tshuam ntau dua, lossis dominance, ntawm nws opposite-acting khub.
Dab tsi yog kev tswj hwm thiab kev thim rov qab?
Nyob rau hauv Mendellian noob caj noob ces, lub dominance thiab recessiveness yog siv los piav qhia txog kev sib raug zoo ntawm ob alleles ntawm ib noob hauv ib heterozygote. Lub allele uas yog ib tug phenotypical ua cim tshaj lwm tus yog lub npe hu ua dominant thiab ib tug functionally masked yog hu ua recessive.
Kev Txom Nyem txhais li cas hauv kev tshawb fawb?
Refers to ib yam uas qhia tsuas yog thaum genotype yog homozygous; ib qho kev zoo uas zoo li yuav tsum tau npog los ntawm lwm yam khoom qub txeeg qub teg, tseem muaj nyob rau hauv cov pej xeem ntawm heterozygous genotypes. © Nature Education. Kev tshawb nrhiav ntxiv.
homozygous txhais li cas hauv noob caj noob ces?
Mloog cov lus. (HOH-moh-ZY-gus JEE-noh-tipe) Lub xub ntiag ntawm ob qho tib si alleles ntawm ib lub gene locus. Ib homozygous genotype tuaj yeem suav nrog ob qho alleles lossis ob alleles uas muaj qhov sib txawv.
Koj txhais li cas los ntawm kev thim rov qab?
Recessive: Ib yam mob uas tshwm sim tsuas yog hauv cov tib neeg uas tau txais ob daim ntawv theej ntawm cov noob caj noob ces, ib daim ntawv los ntawm txhua tus niam txiv. Cov neeg uas muaj ob koob tshuaj ntawm cov noob hloov pauv hu ua homozygotes.… Qhov opposite ntawm recessive yog dominant.