Alleles GCSE yog dab tsi?
Alleles GCSE yog dab tsi?

Video: Alleles GCSE yog dab tsi?

Video: Alleles GCSE yog dab tsi?
Video: CSEC Biology Lessons with Pierce Lawrence - June 5 2020 2024, Kaum ib hlis
Anonim

Alleles yog txawv versions ntawm tib gene. Piv txwv li, cov noob rau qhov muag xim muaj ib qho allele rau xiav qhov muag xim thiab ib qho allele rau xim av qhov muag. Rau txhua tus gene, ib tug neeg yuav muaj tib ob alleles , hu ua homozygous lossis ob qhov sib txawv, hu ua heterozygous.

Tsis tas li ntawd, dab tsi yog qhov kev txhais yooj yim allele?

npe. Cov txhais ntawm alleles yog khub los yog cov noob caj noob ces ntawm ib chromosome uas txiav txim siab cov yam ntxwv ntawm caj ces. Ib qho piv txwv ntawm ib allele yog cov noob uas txiav txim plaub hau xim.

Tsis tas li ntawd, homozygous GCSE yog dab tsi? ib tug neeg uas muaj ob daim ntawv luam ntawm ib qho allele yog homozygous rau qhov tshwj xeeb gene. ib tug neeg uas muaj ob qho sib txawv alleles rau ib lub noob yog heterozygous rau cov noob ntawd.

Ib yam li ntawd, tib neeg nug, dab tsi yog genotype GCSE?

Cov genotype yog qhov sau ntawm alleles uas txiav txim siab lub cev yam ntxwv. Thaum cov no cuam tshuam nrog ib puag ncig lawv tau qhia tias yog phenotype. Alleles yog ob daim qauv ntawm cov noob ntawm ib khub ntawm chromosomes. Tej zaum lawv yuav muaj cov ntaub ntawv zoo ib yam lossis sib txawv.

Recessive GCSE yog dab tsi?

A rov ua dua allele tsuas yog qhia yog tias tus neeg muaj ob daim ntawv luam thiab tsis muaj qhov tseem ceeb ntawm cov noob ntawd. Rov qab alleles yog sawv cev los ntawm tsab ntawv me, piv txwv li, b. Lub allele rau lub qhov muag xiav, b, yog rov ua dua.

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