Triploidy yog ib qho tsis tshua muaj chromosomal txawv txav uas tshwm sim thaum xeeb tub. Cov me nyuam yug los nrog triploidy muaj cov chromosomes ntxiv, thiab qhov no feem ntau ua rau nchuav menyuam thaum ntxov. Txawm li cas los xij, qee zaum cov menyuam mos uas muaj triploidy muaj sia nyob rau hnub lossis hli tom qab yug menyuam.
Thaum twg koj nchuav menyuam nrog triploidy?
Feem ntau ntawm fetuses nrog triploidy yog nchuav menyuam ntawm 7th thiab 17th lub lim tiam ntawm cev xeeb tub (1, 2). Cov txheej txheem ntxiv ntawm chromosomes no yog ua rau muaj ntau yam kev yug me nyuam loj, teeb meem placental, nrhiav pom hydatidiform mollar, thiab teeb meem loj hlob ntawm tus me nyuam hauv plab.
Koj puas tuaj yeem xeeb menyuam tom qab triploidy?
Ntshai heev, cov me nyuam yug los muaj triploidy tab sis lawv tsis nyob dhau me nyuam yaus. Cov menyuam yaus Triploid feem ntau xeeb menyuam thaum ob lub phev fertilize lub qe.
Yuav ua li cas yog triploidy cev xeeb tub?
Triploidy tshwm sim hauv 1-3% feem pua ntawm tag nrho cov kev xav, raws li National Organization for Rare Disorders. Tsis muaj ib qho kev pheej hmoo. Nws tsis muaj ntau dua rau cov niam laus zoo li lwm yam chromosome txawv txav, xws li Down syndrome.
Dab tsi yog qhov ua rau triploidy ntau tshaj plaws?
Cas. Triploidy yog tshwm sim los ntawm ib qho ntxiv ntawm chromosomes. Triploidy tuaj yeem tshwm sim los ntawm ob qho phev fertilizing ib lub qe(polyspermy) (60%) los yog los ntawm ib tug phev fertilizing lub qe nrog ob daim ntawv ntawm txhua chromosome (40%). Cov no yog lwm yam hu ua diandric fertilization thiab digynic fertilization.
