Cov oogonia no pib faib cell thiab nkag mus rau prophase I ntawm kev faib cell meiotic. Cov hlwb tam sim no hu ua thawj oocytes. Lawv raug ntes ib ntus nyob rau theem no kom txog thaum ovulation pib thaum muaj hnub nyoog laus.
Nyob rau theem twg ntawm kev faib cell yog oocyte raug ntes?
Tus thawj oocytes tau raug ntes nyob rau hauv the diplotene theem ntawm prophase I (prophase ntawm thawj meiotic division). Tsis ntev ua ntej yug me nyuam, tag nrho cov fetal oocytes hauv poj niam zes qe menyuam tau mus txog theem no.
Nyob rau theem twg rau Oogonia raug ntes mus txog thaum laus?
Thaum kwv yees li 20 lub lis piam gestation, oogonia ua thawj oocytes, thiab lawv txoj kev loj hlob raug ntes hauv prophase I ntawm meiosis. Lub oocytes 'kev loj hlob tseem nyob rau hauv lub xeev raug ntes mus txog thaum pib ntawm ovulatory cycles ntawm puberty.
Lub sijhawm twg ntawm kev faib cell raug ntes nyob rau hauv vertebrate?
Nyob rau hauv cov qe tsis muaj menyuam los ntawm cov pob txha, lub voj voog ntawm tes raug ntes hauv metaphase ntawm qhov thib ob meiotic division (metaphase II) txog thaum fertilization lossis ua kom.
Lub sijhawm twg ntawm lub voj voog ntawm tes thib ob oocyte raug ntes?
Tom qab ovulation lub oocyte raug ntes nyob rau hauv metaphase ntawm meiosis II txog thaum fertilization. Thaum fertilization, tus thib ob oocyte ua tiav meiosis II los ua ib tug laus oocyte (23, 1N) thiab ib tug thib ob polar lub cev.
