细胞分裂

Ordinate, the fraction of cells in mitosis.

纵坐标，有丝分裂细胞比例。

Under some situations, such as the growth hormone, thyroxine, Gonad hormone secrete insufficient cause sluggish growth, will have one phenomenon that growth run into after being supplementary proper, That is also because the grow board hasn't close yet, cartilage cell still may be accepted amazingly and occur the phenomone of Split and ossify.

某些情况下，比如生长激素，甲状腺素，性腺激素分泌不足而致的生长迟滞，给予适当的补充后会有一段生长赶上的现象，那也是因为生长板还没有闭合，软骨细胞仍可以接受刺激，分裂、骨化。

So the egg should be fertilized in the upper part of the oviduct to allow sufficient time for its development.

在输卵管内的合子要再分裂成一群细胞，然后才能黏附在子宫内膜中，因此卵子要在输卵管的上部受精，以备有足够时间给它发展。

In order to explore the regulatory mechanism of the pachytene checkpoint on Ndt80, we tried to use different epitopes to label Ndt80 and Ndt80-bc, respectively.

有趣的是，zip1 NDT80/NDT80-bc细胞进入核分裂以及孢子生成的时间有延迟现象，推测是失去活性的Ndt80存在并干扰Ndt80-bc的能力。

In case one,his testicular histology was normal and there were 20% abnormal pachytene spermatoeytes,showing unsynaptic and broken SCs.

患者2的几乎100%生精细胞被阻断在减数分裂的前期阶段，显示联会异常如SC粉碎化、SC侧生组分膨化等现象。

Objective: To study the effect of retinoic acid and basic fibroblast growth factor on neural stem cells＇ proliferation and differentiation from new born rats＇ pallium.

目的：研究视黄酸、硷性成纤维细胞生长因子对体外培养的神经干细胞分裂增殖和分化的作用。

It is formed when parenchyma cells resume meristematic activity.

它由恢复分裂能力的薄壁细胞组成。

Another form of apomixes in which seeds develop from unfertilized gametes can also be termed parthenogenesis.

以这种方式产生的种子不是单倍体就是二倍体，完全取决于大孢子母细胞是否经历减数分裂。

In nature, clones are derived from a single parental organism or cell by mitotic cell division, asexual reproduction, or parthenogenesis.

在自然条件下来源于有丝分裂所产生的单个亲本细胞或生物体，还可能来源于无性繁殖或单性生殖。

IGF2, which encodes a protein functioning as a fetal growth factor and a cell mitogen, is expressed only from paternally allele in most tissues but from both alleles in adult liver. H1 9, which acts as an RNA, is a gene of unknown function and expressed only from maternally allele.

IGF2编码的胰岛素样生长因子-2是一种胚胎生长因子及细胞有丝分裂原，在人体内大多数组织中特异地表达父系来源的等位基因，而母源等位基因处于印记状态。H19表达一种功能尚不清楚的RNA，其印记状态与IGF2相反，目前发现H19在正常组织内均为母源等位基因表达，父源等位基因印记。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。