功能单位

The nephron is the structural and functional unit of the kidney.

肾单位是肾脏的结构和功能单位。

Nephron :Functional unit of the kidney that removes waste and excess substances from the blood to produce urine.

肾元；肾单位：肾的功能单位，为自血液排除废物与过剩物质以产生尿的构造。

The two bundle need to be reconstructed in order to restore the function of anterior cruciate ligament.lt is coincident to the propery of kinematics that the knee be fixed at the 110 degree in the early stage.

结论膝关节屈伸过程中前内侧束和后外侧束的是两束不同的功能单位，要恢复前交叉韧带的功能应当将两束分别重建。在重建后早期将韧带固定于屈膝110度的位置更符合运动学的特性。州陪怂岁

Striated myofibrils are composed of numerous basic units, sarcomeres, and are responsible for muscle contraction.

横纹肌的肌原纤维是由许多称为肌节的基本结构单位所构成，肌节也是负责肌肉收缩的基本功能单位。

Pilosebaceous Unit as a basic structure unit takes part in the skin construction, composed of cycling hair follicle,renewing epidermis and constantly releasing sebaceous gland.

毛囊皮脂腺单位是皮肤的重要基本结构功能单位，它包括周期循环的毛囊、不断更新的表皮和连续分泌皮脂的皮脂腺。

NodD binds to and bends target promoters through anchoring two tandem and individual specific DNA sites. NodD functions as a tetramer, which has a V-shaped main body. Tetrameric NodD is to change its own conformation rather than its oligomeric forms in response to small signal molecules. The specific interaction between each NodD DNA-binding domain and each specific DNA site does not alter itself in spite of naringenin induction, and the induced conformational change is transferred from protein to DNA. Only the DNA conformation incited by induced NodD is competent for RNA polymerase to form the transcriptional open complex. It cannot be excluded that NodD may have protein-to-protein contacts with RNA polymerase, and that the NodD conformational change may also directly contribute to the transcriptional open complex formation. However, the NodD conformational change itself cannot serve as the determinant of the transcriptional molecular switch.

通过研究，我们提出了初步的NodD操纵子激活模型：第一，四聚体是NodD蛋白的功能单位，它通过铆钉两个串联的相对独立的DNA靶位点结合被诱导的启动子；第二，小分子配基的结合是改变NodD四聚体的构象而不是引发不同形式的寡聚体，在我们的模型中，NodD四聚体缩小其V形主体的弯折角，进而缩短其DNA结合功能域的间距；第三，小分子信号的诱导并没有改变NodD的DNA结合域和其DNA靶位点的相互作用，NodD的构象改变由蛋白质经其双铆钉位点传递给DNA；第四，只有诱导状态的NodD激发的DNA构象才能有效地使RNA聚合酶形成转录开放复合物；第五，不排除NodD与RNA聚合酶可能有直接的相互接触位点，不排除NodD构象的改变可能直接有利于RNA聚合酶形成转录开放复合物，但是我们认为NodD构象改变本身不是充当转录激活开关的决定因素。

Research with bacteria has shown that the smallest unit of recombination or mutation is one base pair, while the size of a unit of function can be determined by the CIS-TRANS TEST.

通过对细菌的研究，结果显示最小的重组突变单位是一个碱基对，而一个功能单位的大小能够由顺反试验决定。

A gene can be defined as the smallest hereditary unit capable either of recombination or of mutation. Alternatively it may be described as a unit of function, a CISTRON, which may be much larger than a unit of recombination or mutation, and controls the synthesis of a single polypeptide or a messenger RNA molecule whose genetic code is sontained within the gene.

基因是重组和突变的最小遗传单位，也可以被描述为一种功能单位———顺反子，顺反子可能比重组和突变单位大的多，它控制单个多肽的合成或合成含有遗传信息的信使 RNA 密码子。

Nephrons, the basic functional units of the kidney, are generated repetitively during kidney organogenesis from a mesenchymal progenitor population.

肾单位是肾的基本功能单位，在肾脏的器官发生过程中由间充质祖细胞群不断地生成。

Nourishing the liver and kidney , the tortoise and soft-shelled turtle products are the best presents for patients and friends.

龟鳖制品，滋肝补肾，探病访友，送礼佳品。肾单位是肾脏的结构和功能单位。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了