Telomerase is an enzyme that is produced only in cells that are actively dividing.
端粒酶是一种只在活跃分裂的细胞中产生的酶。
A. Telomeres are the protective caps at the ends of chromosomes in cells.
端粒就是细胞内的染色体上的一个保护罩。
They may also help researchers to design synthetic genetic circuits in cells.
它们还能帮助研究人员设计出细胞中的人工基因电路。
The infection-thread enters and branches in cells of the root cortex .
侵染线进入根的皮层细胞并进行分枝。
Enzymes are complex proteins capable of catalyzing specific biochemical reactions in cells.
酶是细胞内能催化特定生化反应的复合蛋白质。
It is also known that DNA damage accumulates with age in cells of a variety of tissue types.
另外我们还知道不同组织的细胞dna的损伤随年龄的增加而累积。
Studies are rapidly revealing the genetic changes in cells that cause cancer and spur its growth.
更多的研究揭示出细胞的基因突变导致了癌症，刺激了癌细胞的生长。
Everyone was cooped up in cells for most of the day, and the children had only an hour or so of lessons.
每个人一天大部分时间都关在囚室里，孩子们大约有一个小时的课可以上。
Vacuoles in cells appear to be hollow sacs but are actually filled with fluid and soluble molecules.
细胞中的液泡好象是中空的，但实际上充满了液体和可溶分子。
Many organisms, including humans, derive their energy from tiny organelles in cells known as mitochondria.
包括人类在内的很多生物的能量都来源于细胞中被称为线粒体的微小细胞器。
The mitochondria are structures in cells that make adenosine triphosphate, or ATP, which helps power cells.
线粒体是细胞内生产三磷酸腺苷即atp的结构，能够给细胞活动提供能量。
The drug works by blocking the action of HIV's enzyme reverse transcriptase, stopping the virus from replicating in cells.
该药物的作用机理是通过阻断艾滋病毒逆转录酶，阻止病毒在细胞内复制。
Morphological change is the most instinctive one and it can also be an indicator for the functional changes in cells.
细胞形态学上的变化是最直观的变化，它预示并隐含着细胞功能上的变化。
And this stability allows investigators to track the goings-on in cells and tissues for longer intervals than can now be achieved.
这种稳定性让研究人员能够更长期地追踪细胞与组织的活动。
It could also improve blood flow in cells, which protects healthy cells but leaves cancer cells vulnerable to the body's natural defences.
另外，这种治疗方法增加了细胞的血液供应，保护了正常细胞，使癌细胞更易于被机体的自然防御系统所攻击。
Ubiquitin, a small protein present in cells of higher organisms, binds to other proteins and influences their fundamental properties.
泛素是一类存在于高等生物的小分子蛋白，可结合到其他蛋白上并改变他们的基本性质。
As you will see below in Listing 16, we use a renderer to customize the data and to color individual items in cells before displaying them.
如您即将在清单16中见到的一样，我们在显示数据之前使用呈现器定制它，并为单元格中的各个项着色。
So understanding more about how this gene is controlled in cells is really important in finding ways to prevent cells from turning cancerous.
因而了解这种基因在细胞里是怎样被控制的，对发现防止细胞癌变的方式极为重要。
In the next article, we will show how we fluidly expand and contract items in cells and how we drag-and-drop items from one cell to another.
在下一篇文章中，我们将展示如何流畅地扩展和收缩单元格中的项，以及如何以拖放的方式在单元格之间移动项。
They found patterns exactly like those in cells from the tumor itself, suggesting that at least some of the blood vessel cells came from the tumor.
他们发现，那些染色体的形态和肿瘤自身细胞的完全相同，说明至少一些血管细胞是来自肿瘤内部的。
The ubiquitin-proteasome proteolytic pathway, a major pathway for protein degradation in cells, plays a critical role in the protein metabolism.
泛素介导的蛋白质降解途径是降解细胞内蛋白质的主要途径，在维持细胞正常的蛋白质代谢中起着至关重要的作用。
The research team then scanned each person's entire genome to determine which genes were either activated or deactivated in cells lining the airways.
接着研究团队细查了每个人的全部基因以确定呼吸道细胞内哪个基因是激活或灭活的。
All cancers begin in cells, the body's basic unit of life. To understand cancer, it's helpful to know what happens when normal cells become cancer cells.
所有的癌症起始于细胞- - -人体基本的生命单位。为了理解癌症，了解正常细胞何时会变为癌细胞非常有用。
Further studies revealed that healthy telomeres delay the ageing process in cells, a finding that prompted a flurry of research into potential anti-ageing treatments.
进一步的研究发现，健康的端粒可以延缓细胞的衰老进程，而这一发现立刻引发了一连串研究抗衰老的潜在治疗方法。
The ubiquitin-conjugating pathway involves in numerous metabolic processes in cells, including DNA damage repair, cell cycle control, stress responses and so on.
泛素缀合途径参与细胞的多种代谢过程，包括DNA损伤修复、细胞周期调控及应激反应等。
The ubiquitin-conjugating pathway involves in numerous metabolic processes in cells, including DNA damage repair, cell cycle control, stress responses and so on.
泛素缀合途径参与细胞的多种代谢过程，包括DNA损伤修复、细胞周期调控及应激反应等。
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