Yuav ua li cas ib tug gene npog qhov kev qhia ntawm lwm gene?
Yuav ua li cas ib tug gene npog qhov kev qhia ntawm lwm gene?

Video: Yuav ua li cas ib tug gene npog qhov kev qhia ntawm lwm gene?

Video: Yuav ua li cas ib tug gene npog qhov kev qhia ntawm lwm gene?
Video: 9 Nqi kev ua neej, txhua tus yuav tau paub 2024, Kaum ib hlis
Anonim

Seb puas los tsis yog lawv sorting ntawm nws tus kheej, noob tuaj yeem cuam tshuam txog qib ntawm noob cov khoom ntawd kev qhia ntawm ib qho allele rau ib gene masks los yog hloov cov kev qhia ntawm ib qho allele rau txawv gene . Qhov no hu ua epistasis.

Tsis tas li ntawd, dab tsi yog epistatic genes thiab yuav ua li cas lawv npog qhov kev qhia ntawm lwm cov noob?

Cov noob epistatic . Ib txhia genes npog qhov kev qhia ntawm lwm cov noob ib yam li ib tug tag nrho dominant allele npog qhov kev qhia ntawm nws recessive counterpart. A noob uas daim npog qhov ncauj cov nyhuv phenotypic ntawm lwm gene npe a epistatic noob ; tus noob nws subordinates yog hypostatic noob.

Tom qab ntawd, lo lus nug yog, puas yog qhov npog ntawm ib lub noob phenotype los ntawm lwm tus? Alleles uas ua rau lub noob ntawm ib kab mob, hu ua collectively li a genotype, muaj nyob rau hauv khub uas zoo tib yam, hu ua homozygous, los yog mismatched, hu ua heterozygous. Thaum twg ib ntawm alleles ntawm a heterozygous khub daim npog qhov ncauj lub xub ntiag ntawm lwm , recessive allele, nws yog hu ua a tseem ceeb allele.

Tsis tas li ntawd, cov noob caj noob ces cuam tshuam nrog ib leeg li cas?

Gene kev sib cuam tshuam tshwm sim thaum ob los yog ntau tshaj allelic los yog non-allelic noob ntawm tib genotype cuam tshuam qhov tshwm sim ntawm cov cim tshwj xeeb phenotypic. Tsis tas li ntawd nyob rau hauv noob networks, raws li kev sib piv ntawm cov neeg nyob sib ze, functionality ntawm muaj feem xyuam noob muaj peev xwm deciphered (Schlitt li al., 2003).

Dab tsi yog cov qauv sib txawv ntawm cov noob rau ib qho zoo?

Cov noob tuaj hauv txawv ntau yam, hu ua alleles. Somatic hlwb muaj ob alleles rau txhua tus noob , nrog rau ib qho allele muab los ntawm txhua tus niam txiv ntawm lub cev.

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