Video: Vim li cas peas zoo rau kev kawm txog noob neej?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Peas yog qhov kev xaiv zoo tshaj plaws rau Mendel siv vim tias lawv tau yooj yim pom cov yam ntxwv muaj 7 qhov uas nws tuaj yeem hloov kho. Mendel npaj yuav xaiv hla pollinate peas nrog ib leeg mus kawm cov yam ntxwv dhau mus thiab cov txiaj ntsig tau los ntawm txhua qhov pollination.
Xav txog qhov no, vim li cas cov peas yog qhov zoo rau kev kawm txog noob neej?
Mendel tau sim nrog vaj pea heredity los ntawm cross-pollinating nroj tsuag nrog txawv yam ntxwv. Cov vaj pea yog a zoo kev rau kawm heredity rau ob peb lub laj thawj: Cov txiv neej thiab poj niam yug me nyuam qhov chaw ntawm vaj peas nyob rau hauv tib lub paj. Qhov no tso cai rau koj kom yooj yim tswj mating.
Dab tsi yog 3 yam uas ua rau cov txiv hmab txiv ntoo zoo rau kev kawm txog noob neej? Mendel tau kawm txog qhov qub txeeg qub teg ntawm xya qhov sib txawv nta hauv peas , nrog rau qhov siab, paj xim, xim ntawm cov noob, thiab cov noob zoo li. Yuav kom ua tau li ntawd, nws thawj zaug tau tsim cov noob taum nrog ob hom sib txawv ntawm a feature , xws li siab vs. luv qhov siab.
Qhov thib ob, Mendel hla paj paj li cas?
Pea nroj tsuag yog ib txwm self- pollinating . Nws tshem tawm cov anthers ntawm lub paj ntawm qee cov nroj tsuag hauv nws qhov kev sim. Ces nws pollinated lawv los ntawm tes nrog paj ntoos los ntawm lwm cov niam txiv nroj tsuag ntawm nws xaiv. Thaum paj ntoos los ntawm ib tsob nroj fertilizes lwm tsob nroj ntawm tib hom, nws yog hu ua ntoo khaub lig - pollination.
Vim li cas Mendel thiaj xaiv vaj peas rau nws qhov kev sim?
Mendel xaiv ntau vaj pea nroj tsuag rau kev tsom xam ntawm nws kev tshawb fawb vim tias lawv tuaj yeem loj hlob tau yooj yim hauv cov neeg coob thiab lawv cov kev tsim tawm tuaj yeem siv tau. Pea cov nroj tsuag muaj ob qho tib si txiv neej thiab poj niam cev xeeb tub. Yog li ntawd, lawv tuaj yeem ua rau lawv tus kheej pollinate lawv tus kheej lossis hla-pollinate nrog lwm cov nroj tsuag.
Pom zoo:
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