Niaj hnub nim no, kev yug menyuam ntxaib yog ib qho uas tshwm sim ntau dua li yav dhau los. Tej zaum koj muaj menyuam ntxaib hauv koj tsev neeg lossis ntawm koj cov phooj ywg. Thaum koj pom tias koj muaj menyuam ntxaib, koj xav tias muaj kev xyiv fab thiab xav paub me ntsis. Yuav luag txhua tus tsuas paub txog cov menyuam ntxaib zoo sib xws thiab cov menyuam ntxaib kwv tij xwb. Tab sis qhov tseeb muaj ntau ntxiv tom qab ob hom no. Zoo, cia peb tham txog lub ntiaj teb zoo kawg nkaus ntawm cov menyuam ntxaib hauv txoj kev yooj yim.
Ob txoj hauv kev tseem ceeb los xeeb tub menyuam ntxaib
Muaj ob txoj kev tseem ceeb uas yuav xeeb tau menyuam ntxaib. Cov kws kho mob hu cov menyuam ntxaib no ua "Dizygotic" thiab "Monozygotic". Hauv cov lus yooj yim, cov no yog cov menyuam ntxaib uas zoo sib txawv thiab cov menyuam ntxaib uas zoo ib yam.
- Cov menyuam ntxaib kwv tij/Dizygotic: Qhov no tshwm sim thaum ob lub qe raug tso tawm ntawm niam lub zes qe tib lub sijhawm thiab fertilized los ntawm ob tug phev sib cais los ntawm leej txiv. Hauv lwm lo lus, nws zoo li ob lub cev xeeb tub tshwm sim tib lub sijhawm.
- Cov menyuam ntxaib zoo ib yam/Monozygotic: Qhov no yog thaum ib lub qe, uas tau sib xyaw los ntawm ib tug phev, faib ua ob hauv ob peb lub lis piam thawj zaug ntawm kev xeeb tub . Qhov no yog vim tias ob tug menyuam zoo ib yam vim tias tib lub embryo faib ua ob.
Lub caij no, kev kho mob txog kev xeeb tub, tshwj xeeb yog cov thev naus laus zis xws li IVF, qee zaum tuaj yeem ua rau muaj menyuam ntxaib uas txawv me ntsis ntawm cov txheej txheem ib txwm muaj no. Cov kws kho mob hu cov no ua "atypical twinning." Cov no tsis tshua muaj heev.
Cov menyuam ntxaib zoo sib xws no yog leej twg? (Monozygotic Twins)
Cov no yog cov "twins zoo sib xws" uas peb txhua tus paub. Kwv yees li ib feem peb ntawm cov menyuam ntxaib hauv ntiaj teb yog cov menyuam ntxaib zoo sib xws.
Zoo li kuv tau hais ua ntej lawm, cov menyuam no yog tsim los ntawm kev sib xyaw ntawm ib lub qe los ntawm ib tug phev, thiab tom qab ntawd lub embryo faib ua ob. Yog li ntawd, lawv cov ntaub ntawv caj ces, uas yog, lawv 'DNA', yog 100% zoo ib yam . Yog vim li ntawd lawv zoo li thiab xav tias zoo ib yam.
Qhov tseem ceeb tshaj plaws yog tias cov menyuam ntxaib "Monozygotic" no yeej ib txwm yog tib poj niam txiv neej . Uas yog, ob leeg yog ntxhais lossis ob leeg yog tub.
Qee zaum cov menyuam ntxaib no tuaj yeem sib koom tib lub hnab amniotic hauv plab. Qhov no yog txiav txim siab los ntawm lub sijhawm uas lub qe menyuam sib cais. Lwm qhov xav tsis thoob yog tias qee cov menyuam ntxaib zoo sib xws zoo li "daim iav duab." Uas yog, qhov nyob rau sab xis ntawm ib tug menyuam yog tib yam li sab laug ntawm lwm tus menyuam. Piv txwv li, yog tias ib tug yog sab xis, lwm tus yuav yog sab laug. Qhov tseeb, vim li cas lub qe menyuam uas tau cog qoob loo thiaj li sib cais ua ob tseem yog qhov paub tsis meej rau tshuaj.
Ua li cas txog cov menyuam ntxaib uas zoo li txawv? (Dizygotic Twins)
Qhov no yog hom ntxaib uas feem ntau pom. Kwv yees li ob feem peb ntawm tag nrho cov ntxaib yog hom no. Peb kuj hu lawv ua "Fraternal twins ".
Qhov no yog qhov uas ob lub qe sib cais tau sib xyaw los ntawm ob tug phev sib cais. Yog li ntawd, cov menyuam no tsuas muaj 50% ntawm cov ntaub ntawv caj ces zoo ib yam (DNA). Yog hais kom meej, lawv zoo li ob tug kwv tij ib txwm yug los rau lub sijhawm sib txawv .
Vim li no,
- Lawv tsis tas yuav zoo ib yam.
- Lawv tsis tas yuav yog tib tug poj niam los yog txiv neej. Yog li ntawd, yog tias muaj cov menyuam ntxaib uas yog ib tug ntxhais thiab ib tug tub , lawv yeej yog cov menyuam ntxaib "Dizygotic" tiag.
- Lawv muaj cov placentas sib cais thiab cov hnab amniotic sib cais hauv lub tsev menyuam.
Koj paub tseeb li cas tias cov menyuam ntxaib zoo ib yam lossis txawv?
Qhov no yog ib qho teeb meem uas ntau tus niam txiv muaj.
- Yog koj cov menyuam ntxaib yog ib tug ntxhais thiab ib tug tub , tsis muaj teeb meem. Lawv yeej yog " Dizygous" lossis cov menyuam ntxaib sib txawv.
- Tiam sis yog ob leeg yog tib tug poj niam los yog txiv neej , uas yog, ob leeg yog tub los yog ntxhais, zaj dab neeg yuav nyuaj me ntsis.
Cov kev kuaj ultrasound thaum cev xeeb tub, tshwj xeeb tshaj yog tom qab 14 lub lis piam, tuaj yeem muab qee lub tswv yim rau cov kws kho mob txog tus menyuam lub placenta. Tab sis lawv tsis yog 100% tseeb.
Txoj kev tseeb tshaj plaws thiab txhim khu kev qha los txiav txim seb cov menyuam ntxaib puas zoo ib yam ('Monozygotic') lossis dizygotic ('Dizygotic') yog kom kuaj 'DNA' tom qab cov menyuam mos yug los.
Qee zaum, thaum cov menyuam mos yug los, lawv saib lub placenta thiab hais tias, "Cov no yog cov menyuam ntxaib zoo sib xws," tab sis thaum cov menyuam loj hlob tuaj, lawv pib zoo li txawv. Nws kuj tseem tuaj yeem yog lwm txoj kev. Yog li, yog tias koj xav paub tseeb, qhov zoo tshaj plaws ua yog mus kuaj 'DNA'.
| Hom ntxaib | Cov yam tseem ceeb uas cuam tshuam rau qhov yuav muaj menyuam ntxaib |
|---|---|
| Cov menyuam ntxaib zoo sib xws (Monozygotic) | Qhov no yog qhov tsis paub tseeb kiag li. Lub caij nyoog uas ib tug poj niam twg muaj menyuam ntxaib zoo sib xws yog li ntawm 1 ntawm 250. Tej yam xws li kev xeeb tub, hnub nyoog, thiab haiv neeg tsis cuam tshuam rau qhov no. |
| Cov menyuam ntxaib Dizygotic | Muaj ntau yam uas yuav cuam tshuam rau qhov no:
|
Cov menyuam ntxaib uas tsis tshua muaj neeg paub uas xav tsis thoob thaum hnov txog
Tej zaum koj tsis tau hnov txog cov no vim tias lawv tsis tshua muaj.
- Cov menyuam ntxaib zoo ib yam li qub '(Sesquizygotic): Qhov no tshwm sim thaum ib lub qe raug chiv los ntawm ob tug phev. Qhov no tsis tshua muaj, vim tias feem ntau tsis muaj cov menyuam embryos uas tsim los ntawm txoj kev no ciaj sia. Cov menyuam no tuaj yeem muaj ntawm 50% thiab 100% ntawm lawv cov DNA zoo ib yam. Qhov xav tsis thoob, cov menyuam ntxaib no kuj tuaj yeem yog poj niam txiv neej sib txawv.
- Mob Ntxaib Ploj: Qhov no tsis yog ib hom ntxaib tiag tiag, tab sis yog ib yam dab tsi uas tshwm sim thaum cev xeeb tub. Thaum ob tug ntxaib xeeb tub, ib tug ntawm cov menyuam hauv plab tsis loj hlob thiab raug nqus mus rau hauv niam lub cev lossis lwm tus menyuam hauv plab.
- Fetus-in-fetu: Qhov no txhais tau tias "fetus nyob hauv tus menyuam hauv plab." Qhov no yog tus menyuam ntxaib uas muaj kab mob parasitic. Tus menyuam hauv plab uas tsis tau loj hlob ntawm tus menyuam ntxaib lwm tus pom nyob hauv lub cev ntawm tus menyuam noj qab nyob zoo. Qhov no kuj tsis tshua muaj.
- Superfetation thiab Superfecundation: Cov no kuj yog cov xwm txheej tsis tshua muaj. 'Superfetation' yog qhov tshwm sim ntawm lwm qhov kev xeeb tub thaum tus poj niam twb cev xeeb tub lawm. 'Superfecundation' yog kev sib xyaw ntawm ob lub qe tso tawm thaum lub sijhawm ovulation tib yam los ntawm cov phev los ntawm ob tug txiv neej sib txawv. Muaj ntau yam tseem raug tshawb pom txog cov no los ntawm kev tshawb fawb.
Tsis txhob txhawj txog cov hom mob no. Vim tias qhov feem pua ntawm cov no tshwm sim tsawg heev. Feem ntau, peb pom cov menyuam ntxaib ntawm ob hom tseem ceeb uas peb tau tham txog ua ntej.
Cov Lus Qhia Txog Kev Coj Mus Tsev
- Ob hom menyuam ntxaib tseem ceeb yog monozygotic / identical thiab dizygotic / fraternal ntxaib.
- Cov menyuam ntxaib zoo sib xws yog tsim los ntawm ib lub qe menyuam faib ua ob, thiab lawv cov DNA yog 100% zoo sib xws. Cov menyuam ntxaib kwv tij yog tsim los ntawm ob lub qe sib cais tau sib xyaw los ntawm ob lub noob qes sib cais. Lawv zoo li cov kwv tij ib txwm muaj.
- Tib txoj kev los paub nrog 100% qhov tseeb seb cov menyuam ntxaib ntawm tib poj niam txiv neej puas zoo ib yam yog los ntawm kev kuaj DNA ua tom qab cov menyuam yug los.
- Muaj lwm hom menyuam ntxaib uas tsis tshua muaj, tab sis lawv tsis tshua muaj. Yog li ntawd, tsis txhob txhawj ntau dhau txog nws.
- Yog tias koj muaj kev txhawj xeeb txog menyuam ntxaib lossis lwm yam kev txhawj xeeb thaum koj cev xeeb tub, tham nrog koj tus kws kho mob txog qhov ntawd.
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Tsis muaj lus teb tau muab tso tawm. Ntxiv koj cov lus tawm ntawm no thawj zaug.
Ntxiv koj cov lus