Video: 2 pn yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib tug pronucleus (plural: pronuclei) yog lub hauv paus ntawm cov phev los yog qe qe thaum lub sij hawm fertilization. Ob-pronuclear zygotes hloov mus los ntawm 1PN lossis 3PN xeev zoo li yuav txhim kho mus rau hauv cov embryos tsis zoo dua li cov uas tseem nyob. 2 PIB thoob plaws txoj kev loj hlob, thiab tej zaum yuav tseem ceeb hauv kev xaiv embryo hauv IVF.
Tom qab ntawd, 1pn embryo yog dab tsi?
2.3 Embryo kab lis kev cai 2PN tau txhais tias muaj ob qho kev sib txawv ntawm cov pronuclei thiab ob lub cev polar. 1 PIB txhais tau hais tias muaj tsuas yog ib tug pronucleus thiab ob lub cev polar. 0PN tau txhais tias yog qhov tsis muaj pronuclei thiab muaj ob lub cev polar.
Ib yam li ntawd, dab tsi yog qhov zoo embryos rau IVF? Feem ntau, a zoo , feem ntau loj hlob hnub 3 embryo yuav muaj li ntawm 6 mus rau 10 lub hlwb. Los ntawm cov kev tshawb fawb uas peb tau ua hauv peb lub chaw kuaj mob thiab los ntawm lwm cov kev tshawb fawb luam tawm, peb paub tias embryo uas muaj cov xov tooj ntawm cov hlwb no feem ntau yuav tsim mus rau blastocysts zoo dua embryo nrog tsawg lub hlwb.
Tsis tas li ntawd, txiv neej Pronucleus yog dab tsi?
Kev kho mob txhais ntawm Pronucleus Cov : Ib lub xov tooj ntawm tes nrog cov chromosomes haploid (23 chromosomes hauv tib neeg) uas tshwm sim los ntawm meiosis (kab mob-cell division). Cov txiv neej pronucleus yog cov phev nucleus tom qab nws nkag mus rau hauv ovum ntawm fertilization tab sis ua ntej fusion nrog poj niam pronucleus.
Dab tsi txiav txim siab qhov zoo ntawm lub embryo?
Qe zoo hais txog qhov tshwm sim ntawm lub embryo implantation, raws li ib feem ntawm cov qe ib tug poj niam tshuav rau yav tom ntej, los yog nws zes qe menyuam cia. Qhov no muaj feem xyuam rau, tab sis tsis tau txhais tag nrho los ntawm, nws lub hnub nyoog.
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