遗传学

Five patients were alive, they appeared progressive muscular atony and atrophy, especially in shoulder and pelvic girdle, with normal serum creatine kinase and troponin T examination; some patients appeared heart enlargement, arrhythmia, and heart failure.

结论该家系符合常染色体显性遗传的特点；根据患者临床及病理特点，诊断为肢带型肌营养不良症伴心肌损害，以肢带型肌营养不良症ⅠB型可能性大；进一步明确其基因分型需行分子遗传学检查。

We presumed that the term of Y-linked inheritance cannot confuse with that of sex-limited inheritance, and that though the sex-limited factor and the sex-influenced inheritance gene are both located on autosome with some distance, but they are still different.

对现行的遗传学教材中存在的专业术语同名异义现象进行探研，针对Y连锁遗传、限性遗传、从性遗传、单倍体、多倍性和累加作用等专业术语存在的表达不清，相互矛盾，同名异义等问题，进行分析探讨，并提出Y连锁遗传不能与限性遗传相混淆，限性遗传和从性遗传的基因是位于常染色体上，但二者存在区别。

The journal publishes original scientific-technological articles on plant physiology, plant pathology, crop science, genetics, soil science, food technology and animal science, agriclultural chemistry, agricultural implements, agricultural machinery, agroclimatology, agroindustrial technology, agrometeorology, animal nutrition, aviculture, bacteriology, biochemistry, biology, biotechnology, botany, climatology, disease bases, ecology, economical and environment impacts, economics, entomology, fertilization, floriculture, forestry, horticultural science, horticulture.

杂志刊载原始科学技术文章，内容涉及植物生理学，植物病理学，作物科学，遗传学，土壤科学，食品技术和动物科学，农业化学，农具，农业机械，农业气候学，农业和工业技术，农业气象学，动物营养，鸟类饲养，细菌学，生物化学，生物学，生物技术，植物学，气候学，疾病机理，生态学，经济和环境影响，经济学，昆虫学，受精，花卉栽培，林业，园艺科学，园艺学。

In traditional population genetics, one important exception is the ability to develop a powerful axiomatization of the subject that does bear strong analogies to equation based theories of physics.

在传统的统计遗传学中，一个重要的例外是把主题内容公式化的能力，这种公式化确实具有与物理学理论类似的函数表述。

To better understand the roles of LsrA protein in nodulation, a series of analyses of nodules using scanning electron microscopy, genetic and biochemical approaches have been carried out. Our analyses suggest that the lsrA1 nodules contain bacteroids in the invasion and establishing zone only. The lsrA gene expression is active early in the invasion zone and activated later than bacA genes. The lost of LsrA protein dramatically reduced the expression of nifA and fixK, and completely blocked the expression of the nifH gene for nitrogenase. LsrA protein functions early in the bacteroid development and it is essential for the development nitrogen fixing bacteroids.

前期的工作中，苜蓿中华根瘤菌Rm1021中90个候选LysR基因已经被定向插入突变，并筛选在自生生长时期、共生生长时期的表型，以期寻找更多在自生状态或共生固氮中有功能的LysR转录因子。1 针对前期鉴定出的共生固氮必需的lsrA基因，我们应用了一系列扫描电子显微镜技术、生物化学、分子遗传学等方法，发现lsrA基因主要在根瘤侵染区开始表达，表达时序也在侵染阶段左右，但晚于bacA基因表达；LsrA蛋白缺失后根瘤固氮区中缺乏具有固氮能力的类菌体，nifA和fixK基因的转录水平降低，nifH基因的转录被完全阻断，因此LsrA蛋白为根瘤发育所必需，是新的根瘤发育信号传导途径成员。2 通过表型筛选我们鉴定了苜蓿中华根瘤菌的oxyR基因，并研究了它的调节特性。oxyR突变后，苜蓿中华根瘤菌对过氧化氢敏感性提高，适应性降低。

Blood samples from 23 Huacaya alpacas ,3 males and 20 females ,were used to study chromosome karyotype ,so as to provide some effective cytogenetics basis for the selectioiymprovement by crossing and disease diagnosis of alpacas ,and genetic mechanisms of sex determination. Peripheral blood lymphocyte culture was used to prepare chromosome. Methods of trypsase-EDTA and BSG (Barium hydroxide / Saline / Giemsa)were used for G-banding and C-banding respectively . The results showed as follows:Firstly , the number of diploid chromosomes was in the alpacas 2n=74,with the karyotype 74, XY and 74, XX for males and females respectively.

为了从选种、杂交改良、疾病诊断以及性别决定的遗传机制等方面为羊驼的繁育与推广提供更为有效的细胞遗传学资料，本试验采用外周血淋巴细胞培养法制备染色体，分析了23只胡阿基亚型羊驼(Huacaya alpaca，雌20只，雄3只)的染色体及其核型，并通过BSG法(Barium hydroxide／Saline／Giemsa，氢氧化钡-盐溶液-吉姆萨，也即Sumner BSG法)与胰酶-EDTA法分别对羊驼的C-分带和G-分带进行分析，结果表明：(1)羊驼二倍体染色体数目为2n=74，雄性羊驼核型为74，XY；雌性羊驼核型为74，XX。

This is the website of Institute of Animal Biochemistry and Genetics.

这是动物生物化学和遗传学研究所网站。

He is the one of researchers firstly engaging in biochemistry and molecular genetics.

他是中国最早从事生物化学和分子遗传学的研究者之一。

Objective To investigate the biogenetic significance of EEG abnormality in Children with Tourette syndrome and their parents.

目的 ：探讨抽动秽语综合征(Tourette综合征，TS)患儿及其父母的脑电图改变在生物遗传学上的意义。

Genetic Algorithms is an adaptive intelligent algorithm about random global search and optimization based on the mechanism of "survival of the fittest" of biological evolutionary theory and population genetics principle.

遗传算法是基于生物进化论的"适者生存"机制和群体遗传学原理而开发出的一种随机全局搜索与优化的自适应智能算法。

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