Dab tsi yog qhov txhais ntawm anaphase 1?
Dab tsi yog qhov txhais ntawm anaphase 1?

Video: Dab tsi yog qhov txhais ntawm anaphase 1?

Video: Dab tsi yog qhov txhais ntawm anaphase 1?
Video: Qhia txhais 50 zaj npau suav tias yog dab tsi part 3 15 Sep 2019 2024, Kaum ib hlis
Anonim

Anaphase Kuv pib thaum ob lub chromosomes ntawm txhua bivalent (tetrad) sib cais thiab pib txav mus rau cov ncej ntawm lub xov tooj ntawm tes raws li qhov tshwm sim ntawm qhov kev ua ntawm spindle. Pom tias hauv anaphase Kuv tus muam chromatids tseem txuas ntawm lawv cov centromeres thiab txav mus ua ke mus rau cov ncej.

Kuj paub, qhov tseem ceeb ntawm anaphase 1 yog dab tsi?

1 ) Anaphase feem ntau ua kom ntseeg tau tias txhua tus ntxhais cell muaj tib tus lej ntawm chromosomes raws li niam txiv cell. 2) Anaphase feem ntau ua kom ntseeg tau tias txhua tus ntxhais cell muaj ob zaug ntau chromosomes li niam txiv cell. 3) Ib anaphase , cell splits nyob rau hauv ib nrab. 4) Ib anaphase , DNA yog replicated.

Ib yam li ntawd, yuav ua li cas thaum anaphase 1 thiab anaphase 2? 1 :?Centromeres ntawm txhua tus chromosome? hauv ?tus?homologous?pair?remain?untouched. Anaphase ? 2 :?Ob tug muam?chromatids?separated by?splitting?the?centromere.

Kuj paub, dab tsi yog lub ntsiab lus ntawm anaphase hauv biology?

Anaphase yog theem plaub ntawm mitosis, cov txheej txheem uas cais cov noob caj noob ces duplicated nqa nyob rau hauv lub nucleus ntawm niam txiv cell mus rau hauv ob lub hlwb zoo tib yam. Cov chromosomes sib cais yog ces rub los ntawm spindle mus rau opposite ncej ntawm tes.

Dab tsi yog qhov txawv ntawm metaphase 1 thiab anaphase 1?

1 :?Single?chromosomes? txav mus rau?tus?opposing?poles?at? anaphase ? 1 . Metaphase ?2:? Ib ?pair?of?sib?chromatids? txav mus rau?tus?opposing?poles?at? anaphase ?2. Metaphase ? 1 :?Qhov? metaphase ?phaj?is?arranged?in?equidistant?to?tus?opposing?poles. ?“Concept?5:?Meiosis? Kuv :? Metaphase ? Kuv ”.

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