At the time of shedding they contain undifferentiated embryos of no more than a few hundred cells . 在脫落的時(shí)候,它們含有不超過(guò)幾百個(gè)細(xì)胞而未分化的胚。
Pathologic study revealed a cystic nephroma with foci of primitive , mesenchymal , undifferentiated , embryonal type sarcoma 病理上顯示為一囊腫性腎細(xì)胞瘤合并局部呈現(xiàn)原生間質(zhì)性,未分化的,胚胎性的肉瘤變化。
Callus 1 . a mass of undifferentiated parenchyma . if a plant is injured , the surrounding uninjured parenchyma cells form a suberin - impregnated callus , sometimes , sealing off the wound 愈傷組織: 1 .一團(tuán)未分化的薄壁組織。如果植物受到損傷,那么周圍未受傷的薄壁組織就會(huì)在傷口處形成具有分生能力的組織,有時(shí)可以封閉傷口。
Embryonic stem ( es ) cell lines isolated from primitive embryonic cells are highly undifferentiated and totipotent cells . in vitro , es cells can spontaneously differentiate into embryoid bodies ( ebs ) containing derivatives of three germ layers 胚胎干細(xì)胞( embryonicstemcell , escell )系是從早期胚胎細(xì)胞分離培養(yǎng)而建立的高度未分化的具有全能性的細(xì)胞系。
Rather than injecting undifferentiated stem cells into damaged tissue , using precursor cells from a later stage of development - - ones already “ programmed ” to become retina or some other type of cell - - may be more successful , he says 不是通過(guò)注射未分化的干細(xì)胞進(jìn)入損傷組織,使用來(lái)自發(fā)育后期的前體細(xì)胞(已經(jīng)程序化成為視網(wǎng)膜或其他種類的細(xì)胞)可能更成功。