Nyob rau hauv tsis tiav dominance yog dab tsi phenotype ntawm heterozygotes?

Cov txheej txheem:

Nyob rau hauv tsis tiav dominance yog dab tsi phenotype ntawm heterozygotes?
Nyob rau hauv tsis tiav dominance yog dab tsi phenotype ntawm heterozygotes?
Anonim

Hauv kev ua tiav tsis tiav, cov phenotype hauv ib tus neeg heterozygous pom qhov tsis tshua muaj siab dua li ntawm ib tus neeg homozygous rau cov tseem ceeb allele, kom AA thiab Aa genotypes tsim cov phenotypes sib txawv. Li no, lub heterozygote (Aa) yuav muaj phenotype nruab nrab ntawm AA thiab aa tus neeg.

Dab tsi yog qhov heterozygous phenotype rau kev ua tsis tiav dominance quizlet?

Incomplete dominance the heterozygous phenotype lies qhov chaw nruab nrab ntawm ob homozygous phenotypes. thaum ob leeg alleles pab rau phenotype. Qhov no txhais tau hais tias cov phenotypes tsim los ntawm ob qho tib si alleles tau qhia meej meej. Ib qho piv txwv yog cov qaib "erminette" uas muaj cov plaub dub thiab dawb.

Dab tsi yog phenotype ntawm heterozygotes paj?

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), los yog heterozygous (red-white). Yog hais tias lawv muaj paj dawb, ces lawv yog homozygous recessive (dawb-dawb). Cov neeg nqa khoom yeej ib txwm heterozygous.

Yuav ua li cas phenotypes qhia hauv heterozygotes hauv kev ua tiav tsis tiav vs Codominance?

Txoj kev tswj hwm tsis tiav yog thaum cov phenotypes ntawm ob niam txiv sib xyaw ua ke los tsim cov phenotype tshiab rau lawv cov xeeb ntxwv. Ib qho piv txwv yog dawbpaj thiab paj liab ua paj liab. Codominance yog thaum ob niam txiv phenotypes qhia ua ke hauv cov xeeb ntxwv.

Yuav ua li cas rau phenotype hauv heterozygote nrog Codominance?

Nyob hauv codominance, cov alleles ntawm ib khub noob hauv ib heterozygote tau qhia tag nrho. Qhov no ua rau cov xeeb ntxwv nrogphenotype uas tsis yog qhov tseem ceeb lossis tsis txaus. Raws li qhov tsis tiav dominance txhais, daim ntawv no ntawm qub txeeg qub teg tshwm sim thaum lub phenotype yog nruab nrab rau cov phenotype ntawm cov niam txiv.

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