细胞分裂

Participate in animal cytokinesis.

参与动物细胞的胞质分裂

It turned out that hematopoietic stem cells be immortalized by constitutive Notch1 and Delta has the function as the mitogenic regulators of hematopoietic stem cells.

研究人员将活化形式Notch受体导入造血干细胞，使其获得了细胞因子依赖性的"永生"；另外，Notch的配体Delta、Jagged具有类有丝分裂因子作用，可保持造血干细胞的自我更新能力，促进其体外增殖。

This centrosome separation process as well as the entry of mitosis was inhibited by actin-filament depolymerization.

此外，使用特异性的药物解聚微丝骨架同样可以抑制中心体的分离过程，延缓细胞进入有丝分裂期。

Reduction of the diploid number of chromosomes by one half during meiosis, resulting in the haploid number.

星状体在细胞浆内形成的星状结构，在有丝分裂期间有棱形纤维环绕中心体

The results showed that meiosis of the tetraploid melon was similar to that of diploid melon with some special behaviors.

结果表明：同源四倍体甜瓜花粉母细胞减数分裂过程与二倍体类似，但有其特殊性。

Proliferative index34.0%, mitotic index2.74%(1.20%～4.80%), apoptotic index1.30%～6.90%, chromosome analysis mainly 46 (44～54/nucleus) and DNA distribution in diploidy were calculated and described.

增殖指数34.0%，分裂指数2.47%(1.20%～4.80%)，凋亡指数1.30%～6.90%，核染色体众数46条为主(44～54条)和细胞周期DNA呈2倍体核型分布。

Oocytes of humans and animals often have long remained at meiotic diplotene.

人和动物的卵母细胞常长期停留在减数分裂的双线期。

Centromeres could be identified easily on the bivalents at diplotene, so it was convenient to analyse the karyotype.

结果表明，日本沼虾染色体数n=52，2n=104，据双线期二价体的相对长度、着丝点位置以及形态诸方面的特点分析了核型，共分为A，B，C，D4个染色体组，核型组成是N=37M+4ST+11T；初级精母细胞减数分裂前期I可分为细线期/偶线期、粗线期、双线期和终变期5个时期，双线期的二价体存在弥散阶段，核仁明显，且双线期二价体着丝点清晰，给核型分析带来了方便。

At normal state, the separase hasn't activity because of its inhibitor securin. But during the transition from metaphase to anaphase, APC is activated and it discomposes the securin. Then the separse what is a protease has activity and it discompose cohesin. So the sister chromatids separate.

通常情况下分离酶受到保全素(securin/PTTG)的抑制而没有活性，当细胞从有丝分裂中期向后期转变时，APC(anaphase-promoting complex，后期促进复合体)被激活并裂解保全素，具有蛋白酶活性的分离酶裂解粘合姐妹染色单体的粘合素，姐妹染色单体分离。

Efficacy: it can effectively discompose melanin, inhibit tyrosinase activity, cut off root of melanin generation, deep whiten and nourish skin, remove sallow and dull skin, present whitening and crystalline skin, resist oxidation and remove free radical, promote substrate cells'regeneration and splitting, promote elastic fiber and collagen fiber growth, and resume skin elasticity and luster.

功效：有效分解黑色素，抑制酪氨酸酶的活性，切断黑色素生成的根源，深层美白营养肌肤，去除黄气暗哑，绽放肌肤净白莹采，抗氧化清除自由基，刺激基底层细胞再生分裂，促进弹力纤维和胶原纤维生长，重现肌肤弹性和光泽，玫瑰精油源源不断供给肌肤充足的水分和营养，深度改善细纹和干燥现象，改善肤色，给肌肤前所未有的白皙亮泽。

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。