Ib qhov sib txawv ntawm homosporous thiab heterosporous pteridophytes yog qhov gametophyte ntawm homosporous pteridophytes yog bisexual thaum gametophyte tsim los ntawm heterosporous pteridophyte yog unisexual.
Gametophyte ntawm pteridophytes yog dab tsi?
The gametophyte yog the haploid theem ntawm lub neej pteridophyte-cycle. Nws tsim los ntawm cov kab mob uas tsim los ntawm sporophyte. Cov kab no germinates thiab loj hlob mus rau hauv lub cev hu ua prothallus.
Pteridophytes puas muaj gametophyte?
Pteridophytes (ferns thiab lycophytes) yog cov nroj tsuag dawb-sporing vascular uas muaj lub neej voj voog nrog hloov pauv, pub dawb-nyob gametophytethiab sporophyte theem uas muaj kev ywj pheej ntawm kev loj hlob. Lub cev ntawm sporophyte zoo sib txawv rau hauv cov hauv paus hniav, qia thiab nplooj. Lub hauv paus system yog ib txwm adventitious.
Puas gametophyte nyob ntawm pteriophytes?
Nyob rau hauv bryophytes lub cim gametophytic yog theem tseem ceeb hauv lub neej voj voog thiab theem sporophyte yog nyob ntawm nws qhov chaw nyob hauv angiosperms, sporophyte yog theem tseem ceeb thiab gametophyte yog nyob ntawm rau nws. … Lub sporophyte ntawm pteridophyte tsim spores hauv sporangia tom qab meiosis.
Puas yog Heterosporous pteridophytes tsim Monoecious gametophyte?
Cov gametophytes tsim hauv Selaginella yog heterozygous muajmicrospores thiab megaspores li txiv neej thiab poj niam gametophytes feem. Yog li, Selaginella tsim dioecious gametophytes. Yog li, lo lus teb raug yog 'Dioecious'.
