2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Thib ob meiotic faib hauv cov poj niam qe tsis tau ua tiav ua ntej cov phev nkag. Yog li ntawd, qhov thib ob meiotic division yuav siv qhov chaw tom qab ovulation, nyob rau hauv lub fallopian tube. Raws li cov phev taub hau nkag mus rau hauv qe cytoplasm, qhov thib ob meiotic division pib mus rau nws theem kawg, muab tawm ib tug thib ob polar lub cev.
meiosis 2 tshwm sim nyob qhov twg ntawm poj niam?
teb. Nws tshwm sim hauv Ovary thaum lub sij hawm tsim ntawm Qe. Nws yog cov txheej txheem tseem ceeb hauv kev tsim cov gametes thiab ua lub luag haujlwm tseem ceeb heev. Tom qab Meiosis tshwm sim, lub qe tsim tawm tag nrho tawm ntawm lub zes qe menyuam ces ovulation tshwm sim.
Puas thib ob meiotic faib tshwm sim tom qab fertilization?
Meiosis II: Tsuas yog siv qhov chaw tom qab fertilisation. Qhov thib ob oocyte tau txais kev faib meiotic thib ob los ua lub zes qe menyuam haploid thiab lwm lub cev polar. Thawj lub cev polar faib los ua ob lub cev polar ntxiv. Peb lub cev polar tsuas degenerate thiab tuag.
Yuav ua li cas 2nd meiotic division ntawm oogenesis tiav?
Lub xovtooj me me yog hu ua thawj lub cev polar, thiab lub xov tooj loj dua hu ua oocyte thib ob. Thaum lub sij hawm thib ob faib meiosis, ib qho zoo sib xws cytokinesis tshwm sim. Feem ntau ntawm cov cytoplasm yog khaws cia los ntawm lub qe loj (ovum), thiab lub cev polar thib ob tau txais me ntsis ntau dua li lub nucleus haploid.
Qhov thib ob meiotic faib hauv theem nraboocyte tshwm sim?
Lub xovtooj thib ob no hu ua lub cev polar thiab feem ntau tuag. Kev ntes meiotic thib ob tshwm sim, lub sijhawm no ntawm theem metaphase II. Thaum ovulation, qhov thib ob oocyte yuav raug tso tawm thiab taug kev mus rau lub tsev menyuam los ntawm oviduct.
Pom zoo:
Thaum twg oogenesis pib?
Oogenesis yog kev tsim ntawm lub qe (tseem hu ua ovum lossis oocyte) hauv poj niam foetus. Oogenesis pib nyob rau hauv lub fetus ntawm ib ncig ntawm 7 lub lis piam 'gestation, thaum primordial kab mob hlwb colonize lub zes qe menyuam tshiab tsim.
Thaum kawg ntawm thawj meiotic faib?
Thaum spermatogenesis, plaub cov phev tshwm sim los ntawm txhua tus thawj spermatocyte. Meiosis pib nrog lub cell hu ua thawj spermatocyte. Thaum kawg ntawm thawj qhov kev faib meiotic, a haploid cell yog tsim hu ua cov spermatocyte thib ob.
Peb puas hais thib ob lossis thib ob?
Thiab "thib ob" yog ib daim ntawv adverbial uas tsis muaj kev nkag siab txhua yam hauv kev suav (tsis yog "thawj"). Thaum koj mus dhau koj daim ntawv teev npe, hais tsuas yog "thib ob, "" thib peb, ""
Kuv yuav tsum siv thib ob lossis thib ob?
"Ua ntej ntawm tag nrho" ua rau kev txiav txim siab thaum koj xav hais txog qhov tseem ceeb ntawm thawj yam khoom hauv koob, tab sis nws yuav tsum tsis txhob ua raws li "thib ob ntawm tag nrho," qhov twg cov lus qhia tsis ua haujlwm li ntawd.
Nyob hauv tib neeg poj niam thaum twg oogenesis pib?
Oogenesis yog kev tsim ntawm lub qe (tseem hu ua ovum lossis oocyte) hauv poj niam foetus. Oogenesis pib nyob rau hauv lub fetus ntawm ib ncig ntawm 7 lub lis piam 'gestation, thaum primordial kab mob hlwb colonize lub zes qe menyuam tshiab tsim.
