Bryophytes yog gametophyte dominant, txhais tau hais tias qhov tseem ceeb tshaj, cov nroj tsuag ntev dua yog cov haploid gametophyte. … Nyob rau hauv bryophytes, cov sporophytes yeej ib txwm unbranched thiab tsim ib zaug xwb sporangium (spore tsim capsule), tab sis txhua gametophyte tuaj yeem ua rau ntau tus sporophytes ib zaug.
Vim li cas sporophyte yog qhov tseem ceeb hauv bryophytes?
Cov nplooj ntsuab ntsuab uas peb pom thaum peb saib cov moss lossis lub cev nqaij daim tawv yog qhov gametophyte tiag tiag, uas yog theem tseem ceeb hauv txhua bryophytes. Cov sporophytes ntawm bryophytes tsis muaj kev nyob dawb. … Vim tias cov nroj tsuag twb haploid lawm, cov gametes no tuaj yeem tsim los ntawm mitosis, kev faib cell yooj yim.
YPob bryophytes puas muaj lub cim tseem ceeb sporophyte?
Nyob rau hauv bryophytes (mosses thiab liverworts), lub cim tseem ceeb yog haploid, kom gametophyte suav nrog qhov peb xav tias yog cov nroj tsuag loj. Qhov opposite yog muaj tseeb rau tracheophytes (vascular nroj tsuag), nyob rau hauv uas lub diploid tiam yog dominant thiab sporophyte muaj xws li cov nroj tsuag loj.
Nyob rau hauv qhov twg sporophyte yog dominant?
Ib qho kev ywj pheej sporophyte yog daim ntawv tseem ceeb hauv txhua qhov clubmosses, horsetails, ferns, gymnosperms, thiab angiosperms uas tau muaj sia nyob rau niaj hnub no.
Puas bryophytes haploid dominant?
Nyob hauv bryophytes (liverworts, hornworts, thiab mosses), gametophyte theem yog dominant. Nplooj nploojcov qauv ntsuab peb paub (Daim duab hauv qab no) yog haploid, thiab ua feem ntau ntawm photosynthesis.
