卵子受精之前，这种基因会产生一种蛋白质，这种蛋白质存在于卵子的细胞质中，它控制着细胞分裂的模式，从而控制着旋向性。
Before egg fertilization, the gene produces a protein, found in the cytoplasm of the egg, that controls the pattern of cell division and thus handedness.
根的生长主要取决于根尖区的细胞分裂和伸长，而调控根尖分生组织细胞分裂的成分很大程度上是未知的。
Root growth is mainly determined by cell division and subsequent elongation in the root apical area. Components regulating cell division in root meristematic cells are largely unknown.
我们的发现表明，细胞类型的直接转变是逐步完成的，而且这个去分化的过程能够在无细胞分裂的情况下发生。
Our findings suggest that direct cell type conversion occurs via successive steps, and that dedifferentiation can occur in the absence of cell division.
由于MEL - 28蛋白在整个细胞分裂的过程中一直与DNA粘附在一起，科学见因此相信它在核膜形成的早期扮演了关键的角色。
Because MEL-28 remains attached to DNA during the entire process of cell division, the scientists believe it plays a crucial role early in the formation of the envelope.
甲福明能促进氧在细胞内的循环流动，进而降低细胞分裂的速度——细胞分裂在保证我们身体正常运转的同时，也是导致我们衰老的罪魁祸首。
Metformin helps to increase oxygen flow on the cellular level, thereby slowing the necessary cell divisions that keep our bodies both functioning correctly but ultimately lead to aging.
另外，无论是单体还是二聚体的CPAP对于细胞分裂的精确调控都是必需的，说明CPAP同源二聚的时间动态性在细胞周期中被严格调控。
In addition, both monomeric and dimeric CPAP are required for accurate cell division, suggesting that the temporal dynamics of CPAP homodimerization is tightly regulated during the cell cycle.
美国俄克拉荷马州医学研究基金会的科学家们第一次成功地将细胞分裂的过程加以逆转，这一医学技术上的突破可能会最终使人类获得治愈癌症及其它多种疾病的有效办法。
Now scientists have for the first time reversed the process of cell division, a breakthrough that could eventually lead to treatments for cancer and other disorders.
这种基因会促使生成一种刺激细胞分裂的蛋白质，把细胞组织变成持续快速增长的肿瘤。Genentech发明了一种可以遏制这种蛋白质的新药——Herceptin。
The gene orchestrates production of a protein that encourages cell division, making this group prone to especially persistent, fast-growing tumors.
我也这么想，但是我错过了一些考试中涉及的细胞分裂问题。
I thought so too, but I missed some questions about cell division on the exam.
当异常半球中的神经元在成熟之前经历过多的细胞分裂时，就会发生这种罕见的疾病，即大脑一侧长得比另一侧大得多。
The rare disorder, in which one side of the brain grows substantially larger than the other, occurs when neurons in the abnormal hemisphere undergo too many cell divisions before they mature.
那些细胞分裂后形成许多其他不同类型的细胞。
Those cells divide and give many other different types of cells.
你操作显微镜和洋葱细胞样本的方式，以及对细胞分裂各阶段的仔细观察、描绘和解释，让我印象非常深刻。
I was so impressed with the way you handle the microscope and the samples of onion cells, and with how carefully you observed and diagramed and interpreted each stage of cell division.
当每次染色体分裂时——即当每次一个细胞分裂成两个时——染色体的尾部，也就是端区，就会发生断裂。
Every time the Chromosome divides—every time one cell divides into two—pieces of the ends of the Chromosome, the telomere, get broken off.
观察二月兰一代杂交种子的细胞分裂。
Observe the meiosis on the F1 hybrid of Orychophragmus violaceus.
它可以帮助建立减数细胞分裂遗传的表达状态。
It can help establish meiotically heritable expression states.
布莱克本和卓斯塔克测定，端粒中一段特殊的DNA序列在细胞分裂染色体自我复制时保护了染色体免受损耗。
Blackburn and Szostak determined that it was a specific DNA sequence in the telomeres that kept chromosomes from fraying whenever they were copied when a cell splits in two.
三名美国科学家因为发现了能在细胞分裂时防止染色体散裂的“保护帽”而赢得今年诺贝尔医学奖。
The discovery of a "protective cap" that prevents chromosomes from falling apart when cells divide has earned three American researchers this year's Nobel prize in medicine.
而且细胞分裂时可能会产生致命的基因复制错误。据此怀疑主义者们说，走向衰老仍是人类不可避免的未来。
Add that to the dangerous genetic copying errors that occur as cells divide and, for these naysayers, growing old remains an unavoidable future for humanity.
研究者还不知道在分子水平是什么激发细胞分裂，但是认识到这个过程以及如何控制它可以通往安全的有效的干细胞治疗道路。
Researchers don't know yet what sparks cell division at the molecular level, but learning that process and how to control it could lead to a safe, effective stem cell therapy.
在正常的细胞中，如果DNA受损，p21就会像刹车一样阻断细胞周期进程以防止细胞分裂和癌变。
In normal cells, p21 ACTS like a brake to block cell cycle progression in the event of DNA damage, preventing the cells from dividing and potentially becoming cancerous.
这种方法可以验证核形态（与细胞分裂、增殖、存活和迁移相关的基本功能）约87%的精度改变。
The method recognized with 87% accuracy changes in the nuclear shape that were related to basic functions such as cell division, proliferation, survival and migration.
当这些微型染色体注入到酵母细胞中后，在细胞分裂时，这种CCCCAA的DNA序列在复制时对染色体起到了保护作用，就像鞋带末端的塑料帽对鞋带起到的防磨损作用。
When these were injected into yeast, the DNA sequence protected the chromosomes when they were copied, just as the plastic tips at the ends of shoelaces stop them from fraying.
研究组通过最初的方法使用更小的探针有效地标记肌动蛋白以及参与细胞分裂，结构，运动和信息传导的分子。
The team used these much smaller probes with the PRIME method to effectively tag actin, a molecule involved in cell division, structure, motility, and communication.
这些断裂可由于紫外照射或X射线引起，同时也可在DNA分子一分为二的细胞分裂过程中发生。
These breaks can, for instance, be caused by ultraviolet light or X-rays, but also occur during cell division, when DNA molecules split and form two new DNA molecules.
在这个模型中，当细胞分裂时，他们随机选择一套100个不同的“显型”—由清晰的遗传特征产生的行为。
In the model, when cells divide they randomly choose from a set of 100 different "phenotypes" - behaviors that result from distinct genetic characteristics.
威尔·马特说之所以有这么多的试验失败，是因为很难保证空卵囊和供体细胞能处在细胞分裂周期的同一阶段。
Wilmut said there were so many failures because it was difficult to ensure that the empty oocyst and the donor cell were at the same stage of the cell division cycle.
但是平衡也受到巨大影响：如果监测点机制使细胞分裂减慢到如同细水长流，后者所引起的新细胞的短缺则可能会加速组织衰老。
But a balance must be struck: If the checkpoint mechanism slows cell division to a trickle, the resulting shortage of new cells will accelerate tissue aging.
这些基因中有一些有助于调节基本的细胞分裂，这可能为癌症的研究提供线索：未调节的细胞分裂可能会导致肿瘤的生长。
Some help regulate basic cell division, which may have implications for cancer research: unregulated cell division can lead to the growth of tumours.
这些基因中有一些有助于调节基本的细胞分裂，这可能为癌症的研究提供线索：未调节的细胞分裂可能会导致肿瘤的生长。
Some help regulate basic cell division, which may have implications for cancer research: unregulated cell division can lead to the growth of tumours.
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