Cov txheej txheem:
- Nws puas tuaj yeem rov tsim cov ceg tawv?
- Yuav ua li cas rov qab cov ceg uas ploj lawm lossis puas lawm?
- Stem cells kho lawv tus kheej?
- Vim li cas tib neeg thiaj li tsis tuaj yeem tsim ceg ceg?
Video: Could stem cells regrow libs?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Loj hlob tag nrho cov ceg Muaj cov neeg laus qia hlwb, ib hom ntawm tes tsis sib txawv uas tuaj yeem ua tshwj xeeb, uas rov tsim cov leeg, tab sis lawv tsis zoo li qhib. Gardiner tau hais tias "Koj tuaj yeem tsim cov hlab ntsha thiab txawm tias cov hlab ntsha,". "Tab sis tag nrho txhais caj npab tsis tuaj yeem [rov "
Nws puas tuaj yeem rov tsim cov ceg tawv?
Txawm tias tib neeg tsis muaj peev xwm rov tsim cov ceg uas ploj lawm, muaj ntau yam tsiaj uas tuaj yeem ua tiav qhov kev ua tau zoo no. Piv txwv li, newts thiab salamanders tuaj yeem rov tsim cov ceg uas ploj lawm, xws li caj npab thiab txhais ceg. Lizards, xws li skinks, tuaj yeem rov tsim cov tails uas ploj lawm. Hnub qub tuaj yeem tsim kho caj npab uas ploj lawm.
Yuav ua li cas rov qab cov ceg uas ploj lawm lossis puas lawm?
Peb tuaj yeem tsim cov ntiv tes, cov leeg, cov ntaub so ntswgthiab, rau qee yam, tawv nqaij. Tab sis rau cov qauv loj dua li cov ceg, peb cov suab paj nruag regeneration poob sib nrug. Tib neeg lub cev siv sij hawm ntau hnub los tsim daim tawv nqaij ntawm qhov raug mob, thiab tsis muaj qhov txhab epithelium tseem ceeb, peb txoj kev cia siab rau kev tsim dua tshiab tau ploj mus ua ntej nws pib.
Stem cells kho lawv tus kheej?
Cov neeg laus qia cells tuaj yeem faib lossis rov ua nws tus kheej tsis tu ncua Qhov no txhais tau tias lawv tuaj yeem tsim ntau hom cell los ntawm lub hauv paus chiv keeb lossis tseem rov tsim cov khoom qub qub, tag nrho. Qhov kev faib tawm thiab kev tsim dua tshiab no yog li cas daim tawv nqaij kho mob, lossis ua li cas lub cev xws li daim siab, piv txwv li, tuaj yeem kho nws tus kheej tom qab kev puas tsuaj.
Vim li cas tib neeg thiaj li tsis tuaj yeem tsim ceg ceg?
Tib neeg muaj qee cov qia hlwb, tab sis cov hlwb tsis yooj yim los pab kho. Feem ntau lwm cov tsiaj txhu zoo ib yam, yog li lawv tsis zoo ntawm kev tsim dua tshiab. Amphibians thiab qee cov ntses muaj cov qia hlwb uas yooj yim dua, thiab feem ntau zoo nkauj ntawm kev tsim dua tshiab.
Pom zoo:
Puas yog cov stem cells ntau ntau?
Multipotent cells tuaj yeem tsim ua ntau tshaj ib hom cell, tab sis muaj tsawg tshaj li pluripotent hlwb; cov neeg laus qia hlwb thiab qaum cov qe ntshav yog suav tias muaj ntau yam . Puas yog ib lub xovtooj ntawm tes uas yog qia cell?
Pob ntoo regrow hauv kuv lub sij hawm ntawm portia?
Nyob rau PC, tsob ntoo feem ntau rov ua dua li ob peb hnub, cov ntoo loj heev siv sijhawm ntev dua. Ntoo nyob rau hauv lub laj kab rhiav yuav tsis respawn. Koj tuaj yeem yuam cov ntoo kom spawn los ntawm reloading lossis rov pib koj qhov kev ua si.
Pob squids regrow tentacles?
Squid dauv caj npab thaum kais los ntawm lub raj mis txhuam. … Tsis txhob txhawj, vim tus squid tuaj yeem rov ua dua lawv txhais caj npab ib zaug lawv tau txi Tus cwj pwm no tsis yog tshwj xeeb, txawm li cas los xij, ntau lwm tus tsiaj siv lub tswv yim no kom tsis txhob noj;
Puas yog stem cells pluripotent?
Embryonic stem cells Lawv yog pluripotent, uas txhais tau tias lawv tuaj yeem loj hlob mus rau ib qho ntawm cov hlwb ntawm cov neeg laus lub cev. Cov kws tshawb fawb ntseeg tias, vim tias lawv muaj pluripotent, thiab loj hlob tau yooj yim, lawv muaj peev xwm zoo tshaj plaws los hloov cov ntaub so ntswg puas lossis ploj lossis lub cev .
Stem cells puas kho tsis tau?
qia hlwb yog cov hlwb qub uas muaj peev xwm faib ua ntau lub hlwb rau kev kho, kev loj hlob, thiab rov tsim dua tshiab. Cov kev tshawb fawb ntawm cov qauv kev sim tau pom tias kev kho mob ntxiv lawm tshob nrog qia cell kho yog gaining txais [
