Teb tiav: Thaum lub sijhawm microsporogenesis, meiosis tshwm sim hauv microspore niam hlwb. Thaum lub anther tseem hluas, ib pab pawg ntawm cov kab mob sib xyaw ua ke nyob hauv nruab nrab ntawm txhua microsporangium. Cov hlwb hauv nruab nrab no tso rau hauv microsporangium tsim cov 'sporogenous cov ntaub so ntswg'.
Microsporogenesis Nws tshwm sim qhov twg?
Kev tsim ntawm microspores hauv microsporangia (lossis paj paj sacs) ntawm cov noob nroj tsuag. Ib lub cell diploid nyob rau hauv microsporangium, hu ua microsporocyte los yog paj ntoos niam cell, nkag mus rau meiosis thiab ua rau muaj plaub haploid microspores.
YMeiosis hauv Microsporogenesis yog dab tsi?
Microsporogenesis lossis txiv neej meiosis yog theem ntxov tshaj plaws hauv paj ntoos ontogeny. Nws muaj cov kev faib tawm nuclear cuam tshuam nrog cytoplasmic divisions lossis cytokinesis. Cov txheej txheem no pib nrog microsporocytes lossis paj paj noob qes nyob rau hauv lub hnab ntawv callose nyob rau hauv uas meiosis tshwm sim.
Muaj pes tsawg mitosis thiab meiosis tshwm sim hauv Microsporogenesis?
Ib qho kev faib meiotic thiab ib qho kev faib mitotic muaj nyob hauv microsporogenesis.
Yuav ua li cas thaum Microsporogenesis?
Microsporogenesis suav nrog cov xwm txheej uas ua rau tsim cov haploid unicellular microspores. Thaum lub sij hawm microsporogenesis lub diploid sporogenous hlwb txawv li microsporocytes (pollen niam hlwb lossismeiocytes) uas faib los ntawm meiosis los ua plaub haploid microspores.
