Teb tiav: Lawv yog polyploidy. Cov kab mob tapetal pom qhov nce hauv lawv cov ntsiab lus DNA.
Ploidy ntawm tapetal cells yog dab tsi?
Tapetum yog nyob rau hauv anther uas txhawb rau kev nce qib ntawm hmoov av. nws yog diploid. … Nco qab tias hauv cov nroj tsuag txhua lub hlwb yog diploid ib sab ntawm plua plav nplej thiab poj niam gametophyte (cov kab mob hauv lub cev) uas yog haploid, thiab tom qab kev kho mob endosperm zoo li tus uas yog triploid.
Puas yog generative cell haploid lossis diploid?
A haploid cell, hu ua generative cell, taug kev hauv lub paj paj ntoos. Lub generative cell mus tom qab lub raj nucleus, uas yog lub nucleus ntawm lub cell loj uas ua rau ntau ntawm cov paj ntoos raj thiab nplej. Lub generative cell faib los ntawm mitosis los tsim ob haploid phev hlwb.
Dab tsi yog tapetal cells?
Cov tapetum yog txheej txheej tshwj xeeb ntawm cov hlwb pom nyob rau hauv lub anther, ntawm cov paj ntoo, qhov chaw nws nyob nruab nrab ntawm cov ntaub so ntswg sporangenous thiab phab ntsa anther. Tapetum yog ib qho tseem ceeb rau kev noj haus thiab kev loj hlob ntawm paj ntoos nplej, nrog rau qhov chaw ntawm cov khoom ua ntej rau lub tsho paj ntoos.
P tapetum thiab C tapetum yog dab tsi?
Tus p-tapetum nrog cov hlwb me tau muab los ntawm parietal txheej thiab c-tapetum nrog cov hlwb loj yog los ntawm cov ntaub so ntswg sib txuas. … Cov tsos mob tshwm sim tau pib tshwm sim hauv cov kab mob c-tapetal hauv cov hnab paj ntoos sib txawv thaum lub sij hawm meiosis,tetrads lossis microspore theem. Feem ntau c-tapetal hlwb degenerated ua ntej tshaj p-tapeteum.
