Dab tsi yog niam txiv cell hauv meiosis?
Dab tsi yog niam txiv cell hauv meiosis?

Video: Dab tsi yog niam txiv cell hauv meiosis?

Video: Dab tsi yog niam txiv cell hauv meiosis?
Video: Niam Ntiav - Nkauj Tawm Tshiab 2022 ( Hu Dua Yang Her & Mim Moua ) Laim Lauj 2024, Kaum ib hlis
Anonim

Meiosis yog hom cell faib uas txo cov naj npawb ntawm cov chromosomes nyob rau hauv lub niam txiv cell los ntawm ib nrab thiab tsim plaub gamete hlwb . Cov txheej txheem ua rau plaub tus ntxhais hlwb uas yog haploid, uas txhais tau hais tias lawv muaj ib nrab ntawm cov chromosomes ntawm diploid niam txiv cell.

Tsis tas li ntawd, meiosis siv rau dab tsi?

Meiosis , ntawm qhov tod tes, yog siv rau tsuas yog ib lub hom phiaj hauv tib neeg lub cev: kev tsim cov gametes-sex cells, lossis phev thiab qe. Nws lub hom phiaj yog ua kom cov menyuam ntxhais nrog ib nrab ntawm ntau chromosomes raws li lub cell pib.

Tsis tas li ntawd, yuav ua li cas tshwm sim rau 4 tus ntxhais cell tom qab meiosis? Meiosis yog ib txoj kev uas ib leeg cell faib ob zaug los tsim plaub hlwb muaj ib nrab ntawm cov ntaub ntawv keeb kwm yav dhau los. Thaum meiosis ib cell ? faib ob zaug rau daim ntawv plaub tus ntxhais . Cov no plaub tus ntxhais tsuas muaj ib nrab ntawm cov chromosomes? ntawm niam txiv cell - lawv haploid.

Ib yam li ib tug yuav nug, puas yog meiosis tsim cov hlwb zoo ib yam?

meiosis . Mitosis tso cai rau hlwb rau tsim zoo tib yam cov ntawv luam ntawm lawv tus kheej, uas txhais tau hais tias cov khoom siv caj ces yog luam tawm los ntawm niam txiv mus rau tus ntxhais hlwb . Mitosis tsim ob tug ntxhais hlwb los ntawm ib tug niam txiv cell . Tag nrho cov txheej txheem ntawm meiosis tsim plaub tug ntxhais hlwb los ntawm ib leej niam leej txiv cell.

Hom cell twg raug meiosis?

Thaum somatic hlwb raug mitosis rau proliferate, cov kab mob kis tau meiosis los tsim haploid gametes (cov phev thiab qe). Txoj kev loj hlob ntawm ib tug tshiab progeny kab mob yog pib los ntawm fusion ntawm gametes ntawm fertilization.

Pom zoo: