Kev yug me nyuam li cas muab kev hloov pauv?
Kev yug me nyuam li cas muab kev hloov pauv?

Video: Kev yug me nyuam li cas muab kev hloov pauv?

Video: Kev yug me nyuam li cas muab kev hloov pauv?
Video: Qhia txog kev yug me nyuam yooj yim 2024, Kaum ib hlis
Anonim

Qhov no puas pab tau?

Yog · Tsis yog

Hais txog qhov no, vim li cas kev sib deev kev sib deev yog qhov kev hloov ntawm caj ces?

Piav vim li cas kev sib deev yog a qhov chaw ntawm genetic variation . Kev sib deev tso cai rau ntau yam thiab nws tso cai rau hom evolve thiab hloov raws sijhawm. Ib hom tshiab tuaj yeem tsim tau thaum ib pab pawg neeg tseem nyob sib cais los ntawm lwm yam ntawm nws cov tsiaj ntev txaus los hloov cov yam ntxwv sib txawv.

Tsis tas li ntawd, kev hloov pauv tau tshwm sim li cas hauv kev yug me nyuam asexual? Hauv kev yug me nyuam asexual ib daim qauv ntawm cov noob caj noob ces yog tsim los ntawm niam txiv kab mob (ib clone). Tsis zoo li kev sib deev kev yug me nyuam , kev yug me nyuam asexual tsuas yog qhia txog caj ces kev hloov pauv nyob rau hauv cov pejxeem yog ib tug random mutation nyob rau hauv lub cev DNA kis mus rau cov xeeb leej xeeb ntxwv.

Hais txog qhov no, qhov tseem ceeb ntawm kev hloov pauv hauv kev sib deev yog dab tsi?

Hauv qhov xwm txheej, kev hloov pauv tshwm sim thaum kev sib deev . Yog qhov no kev hloov pauv yog qhov muaj txiaj ntsig zoo rau hom, nws raug xaiv thiab tseem nyob hauv cov pej xeem. Qhov no yog vim lub variant hom yog ntau yoog. Yog li ntawd, lawv muaj peev xwm ciaj sia zoo dua thiab yug me nyuam xa cov noob rau cov xeeb ntxwv.

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.

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