Video: Yuav ua li cas koj paub yog hais tias ib tug diploid yog haploid?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj ob hom cell hauv lub cev - haploid cell thiab diploid hlwb.
Daim duab piv.
| Diploid | Haploid | |
|---|---|---|
| Txog | Diploid cov hlwb muaj ob pawg ua tiav (2n) ntawm chromosomes. | Haploid cov hlwb muaj ib nrab ntawm cov chromosomes (n) li diploid - i.e. aw haploid cell muaj tsuas yog ib pawg ua tiav ntawm chromosomes. |
Ua raws li qhov no, koj yuav txiav txim siab li cas yog Reebops yog cov kab mob haploid lossis diploid?
A haploid cell nrog ib haploid tooj, uas yog tus naj npawb ntawm chromosomes pom nyob rau hauv lub nucleus uas tsim ib txheej. Hauv cov kab mob diploid , diploid cov hlwb muaj cov txheej txheem tsim nyog ntawm chromosomes, thaum haploid tsuas muaj ib nrab ntawm cov chromosomes pom nyob rau hauv lub nucleus.
Qhov thib ob, puas yog mitosis pib nrog haploid lossis diploid? Yog hais tias ib tug haploid cell undergoes mitosis, uas yog ib yam dab tsi ntawm cov nroj tsuag thiab fungus ua raws li ib feem ntawm lawv lub neej mus ib txhis, qhov kawg tshwm sim yog. ob cov hlwb zoo tib yam haploid (n → n). Hauv meiosis, txawm li cas los xij, koj pib nrog lub cell diploid uas faib ob zaug los tsim plaub hlwb haploid.
Hauv qhov no, lub cell diploid zoo li cas?
A diploid cell yog a cell uas muaj ob pawg ua tiav ntawm chromosomes. Qhov no yog ob npaug ntawm tus lej haploid chromosome. Txhua khub ntawm chromosomes hauv a diploid cell suav hais tias yog homologous chromosome teeb. Paired kev sib deev chromosomes yog X thiab Y homologs hauv txiv neej thiab X thiab X homologs hauv poj niam.
Koj txhais li cas los ntawm haploid?
Haploid yog lo lus siv thaum lub xov tooj ntawm tes muaj ib nrab ntawm cov chromosomes li niaj zaus. Ib txwm eukaryotic gamete kab mob yog tsim los ntawm cov hlwb diploid, ib pawg ntawm chromosomes los ntawm txhua tus niam txiv. Txawm li cas los xij, tom qab meiosis, tus naj npawb ntawm chromosomes hauv gametes yog halved.
Pom zoo:
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