Yuav ua li cas yog tag nrho cov xaiv rog thiab mechanisms ntawm evolution?
Yuav ua li cas yog tag nrho cov xaiv rog thiab mechanisms ntawm evolution?

Video: Yuav ua li cas yog tag nrho cov xaiv rog thiab mechanisms ntawm evolution?

Video: Yuav ua li cas yog tag nrho cov xaiv rog thiab mechanisms ntawm evolution?
Video: Leng Yang - Yog Vim Dab Tsi (Official Full Song | Nkauj Tawm Tshiab) 2020/05/24 2024, Kaum ib hlis
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Allele frequencies nyob rau hauv ib tug pej xeem yuav hloov vim plaub lub hauv paus zog ntawm evolution : Natural Selection, Genetic Drift, Mutations thiab Gene Flow. Kev hloov pauv yog qhov kawg ntawm cov alleles tshiab hauv cov noob caj noob ces. Qhov thib ob qhov tseem ceeb tshaj plaws mechanisms ntawm evolutionary kev hloov pauv yog: Natural Selection thiab Genetic Drift.

Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog 5 lub tswv yim loj ntawm evolution?

Muaj tsib lub tswv yim tseem ceeb uas ua rau cov pej xeem, ib pab pawg ntawm cov kab mob sib cuam tshuam ntawm ib hom kab mob, ua kom pom kev hloov pauv ntawm allele zaus ntawm ib tiam mus rau lwm tiam. Cov no yog evolution los ntawm: kev hloov pauv , genetic drift , gene ntws , kev sib tw tsis sib xws, thiab natural xaiv (yav dhau los tau tham ntawm no).

Tom qab ntawd, lo lus nug yog, dab tsi yog 7 mechanisms ntawm evolution? Mechanisms ntawm evolution Hais txog kev ua txhaum cai ntawm Hardy-Weinberg kev xav. Lawv yog: kev hloov pauv, kev sib txuas tsis sib xws, cov noob ntws, qhov loj ntawm cov pejxeem loj (genetic drift), thiab kev xaiv ntuj.

Tom qab ntawd, dab tsi yog kev xaiv rog hauv evolution?

a) Natural Selection - Kev xaiv ntuj yog ib lub tswv yim ntawm kev hloov pauv uas tshwm sim thaum ib puag ncig ntuj xaiv rau lossis tawm tsam ib qho tshwj xeeb. Qhov no xaiv siab (los yog xaiv quab yuam) ua rau qee cov alleles ua ntau dua hauv cov pejxeem.

Dab tsi yog 8 mechanisms ntawm evolution?

Kev hloov pauv, kev tsiv teb tsaws (gene flow), genetic drift, thiab natural selection as mechanisms ntawm kev hloov; Qhov tseem ceeb ntawm kev hloov caj ces; random xwm ntawm genetic drift thiab cov teebmeem ntawm ib tug txo nyob rau hauv genetic variation; Yuav ua li cas variation, sib txawv me nyuam, thiab heredity tshwm sim evolution los ntawm kev xaiv ntuj; thiab.

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