sporation . organ formation in prothallus. Spore germination.
nyob rau theem twg meiosis tshwm sim hauv pteridium?
sporation . organ formation in prothallus. Spore germination.
Nyob rau hauv qhov meiosis hauv qab no tshwm sim?
Meiosis tsuas yog siv nyob rau hauv cov kab mob sib deev Qee zaum cov haploid gametes raug tsim tawm uas txuas ntxiv rau cov phev haploid nyob ntawm seb hom kab mob. Cov spores uas tsim tawm haploid tau muab faib ntxiv los ntawm mitotic cell division rau kev tsim cov unicellular lossis multicellular kab mob.
Lub sijhawm twg meiosis tshwm sim hauv Fern?
Yog li cov spores tsim muaj haploid nyob rau hauv cov xwm thiab germinate los tsim ib tug prothallus uas sawv cev rau tiam gametophytic. Antheridium thiab archegonium tau yug los ntawm qhov prothallus. Yog li meiosis tshwm sim nyob rau theem ntawm kev tsim cov kab mob.
Meiosis nyob qhov twg hauv Fern?
Meiosis tshwm sim hauv sporangia, nyob rau hauv qab ntawm nplooj sporophyte. Tom qab cov spores tso tawm lawv germinate, faib los ntawm mitosis thiab loj hlob mus rau hauv lub plawv yooj yim gametophytes.
