Lub ntsiab lus ntawm kev hloov caj ces yog dab tsi?
Lub ntsiab lus ntawm kev hloov caj ces yog dab tsi?

Video: Lub ntsiab lus ntawm kev hloov caj ces yog dab tsi?

Video: Lub ntsiab lus ntawm kev hloov caj ces yog dab tsi?
Video: Leng Yang - Yog Vim Dab Tsi (Official Full Song | Nkauj Tawm Tshiab) 2020/05/24 2024, Kaum ib hlis
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Genetic variation yog ib lo lus siv los piav txog qhov kev hloov pauv nyob rau hauv DNA ib theem zuj zus ntawm peb txhua tus genomes. Genetic variation ua rau ntau hom, lossis alleles?, ntawm gene.

Ib yam li ib tug yuav nug, qhov piv txwv ntawm kev hloov caj ces yog dab tsi?

Qhov laj thawj tseem ceeb ntawm kev hloov pauv suav nrog kev hloov pauv, noob ntws, thiab kev sib deev. DNA mutation ua rau noob caj noob ces variation los ntawm kev hloov cov noob ntawm tib neeg hauv cov neeg. Piv txwv ntawm kev hloov pauv caj ces suav nrog qhov muag xim, hom ntshav, camouflage nyob rau hauv cov tsiaj, thiab nplooj hloov pauv hauv cov nroj tsuag.

Tom qab ntawd, lo lus nug yog, qhov kev hloov pauv caj ces yog dab tsi thiab vim li cas nws tseem ceeb? Genetic variation yog qhov tseem ceeb rau natural xaiv vim natural xaiv tuaj yeem nce lossis txo qhov zaus ntawm alleles uas twb muaj lawm hauv cov pejxeem. Genetic variation yog tshwm sim los ntawm: kev hloov pauv . random mating ntawm cov kab mob.

Ntawm no, 3 hom kev hloov caj ces yog dab tsi?

Muaj peb qhov chaw ntawm kev hloov caj ces: kev hloov pauv , gene ntws , thiab kev sib deev. A kev hloov pauv tsuas yog qhov hloov pauv hauv DNA. Kev hloov pauv lawv tus kheej tsis tshua muaj tshwm sim thiab feem ntau ua rau muaj kev phom sij rau tib neeg. Vim li no, kev hloov pauv feem ntau yog xaiv tawm tsam los ntawm cov txheej txheem evolutionary.

Koj txiav txim siab txog kev hloov pauv caj ces li cas?

Ntawm cov tib neeg nyob rau hauv ib tug pej xeem Genetic variation kuj tuaj yeem txheeb xyuas los ntawm kev tshuaj xyuas kev hloov pauv nyob rau theem ntawm enzymes siv cov txheej txheem ntawm cov protein electrophoresis. Polymorphic noob muaj ntau tshaj ib qho allele ntawm txhua qhov chaw.

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