Video: Kev ywj pheej assortment hais txog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kev txhais ntawm ywj siab assortment
: tsim ntawm random ua ke ntawm chromosomes inmeiosis thiab ntawm cov noob ntawm txawv khub ntawm homologous chromosomesby txoj kev raws li txoj cai ntawm qhov tshwm sim ntawm ib tug ntawm txhua tus diploid khub ntawm homologous chromosomes rau hauv txhua gamete ywj siab ntawm ib leeg khub.
Ntawm no, dab tsi yog kev ywj pheej assortment?
Txoj Cai ntawm Kev ywj pheej Assortment piav qhia cov noob sib txawv ntawm nws tus kheej sib cais los ntawm ib leeg thaum cov hlwb tsim tawm. Kev ywj pheej assortment ntawm cov noob caj noob ces thiab lawv qhov zoo sib xws tau pom thawj zaug los ntawm Gregor Mendelin 1865 thaum nws kawm txog noob caj noob ces hauv cov txiv ntoo.
Tsis tas li ntawd, dab tsi yog qhov xav tau rau kev ywj pheej assortment? Mendel txoj cai ntawm ywj siab assortment hais tias cov alleles ntawm ob (lossis ntau dua) cov noob sib txawv tau txheeb rau gametes ywj siab ntawm ib leeg. Hauv lwm lo lus, allele ib gamete tau txais rau ib lub noob tsis cuam tshuam theallele tau txais rau lwm cov noob.
Kuj kom paub, dab tsi yog kev ywj pheej assortment xa mus rau quizlet?
ywj siab assortment . ywj siab assortmentis lub random sorting ntawm chromosomes, thaum lub sij hawm tsim ntawmgametes. nws xaus mus ua ib tug gametes. crossing over.crossing over yog chromosomes tuaj ua ke thiab tuaj yeem ua twisted, thiab lawv rub sib nrug uas ua rau lawv tawg, rearange thenreattach.
Dab tsi theem ntawm meiosis yog kev ywj pheej assortment?
1 Teb. Thaum lub sij hawm meiosis, kev ywj pheej assortment yuav ua ntej thiab tom qab ntawd hla yuav ua. Tsis yog, kev ywj pheej assortment tshwm sim tom qab hla dhau. Hla overoccurs nyob rau hauv prophase I thaum ywj siab assortment tshwm sim nyob rau hauv metaphase kuv thiab kev anaphase Kuv.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm kev ywj pheej thiab kev vam meej hauv lej?
Qhov sib txawv ntawm qhov sib txawv yog qhov nyob ntawm tus nqi ntawm qee tus lej. Lwm txoj hauv kev los muab nws yog qhov sib txawv ntawm qhov sib txawv yog tus nqi tso zis thiab qhov sib txawv ntawm tus kheej yog tus nqi nkag. Yog li rau y = x + 3, thaum koj nkag x = 2, cov zis yog y = 5
Vim li cas peb thiaj li hais txog kev txwv tsis pub muaj kev hais tawm thiab thaum twg peb yuav hais cov kev txwv?
Peb hais txog kev txwv vim nws yuav ua rau qhov sib npaug tsis tau txhais hauv qee qhov txiaj ntsig ntawm x. Qhov kev txwv ntau tshaj plaws rau cov lus qhia muaj nuj nqis yog N / 0. Qhov no txhais tau tias txhua tus lej muab faib los ntawm xoom tsis tau txhais. Piv txwv li, rau txoj haujlwm f(x) = 6/x², thaum koj hloov x = 0, nws yuav ua rau 6/0 uas tsis tau txhais
Dab tsi qib ntawm kev ywj pheej tshem tawm qhov kev txwv tangent?
Ib qho kev txwv tangent tshem tawm ib qib ntawm kev txhais lus tawm. Nyob nruab nrab ntawm lub tog raj kheej thiab lub dav hlau, nws tshem tawm ib qib ntawm kev ywj pheej ntawm kev ywj pheej thiab ib qib kev ywj pheej ntawm kev sib hloov. Sab hauv Cov Haujlwm Thawj qhov xaiv hauv qhov thib ob xaiv ntawm qhov tangent point
Dab tsi yog qhov zoo tshaj plaws piav qhia Txoj Cai ntawm Kev ywj pheej Assortment?
Mendel txoj cai lij choj ntawm kev ywj pheej hais tias cov alleles ntawm ob (lossis ntau dua) cov noob sib txawv tau txheeb rau hauv gametes ntawm ib leeg. Hauv lwm lo lus, allele ib gamete tau txais rau ib lub noob tsis cuam tshuam rau allele tau txais rau lwm cov noob
Txoj cai lij choj ntawm Kev ywj pheej Assortment piav qhia nrog piv txwv yog dab tsi?
Txoj cai ntawm kev ywj pheej assortment yog nyob ntawm tus ntoo khaub lig dihybrid. Nws hais tias qhov qub txeeg qub teg ntawm ib tus cwj pwm yeej ib txwm muaj kev ywj pheej ntawm qhov qub txeeg qub teg ntawm lwm cov cim hauv tib tus neeg. Ib qho piv txwv zoo ntawm kev ywj pheej assortment yog Mendelian dihybrid ntoo khaub lig