理学 >>> 生物学 >>> 生物数学 生物物理学 生物化学 细胞生物学 生理学 发育生物学 遗传学 放射生物学 分子生物学 生物进化论 生态学 神经生物学 植物学 昆虫学 动物学 微生物学 水生生物学 病毒学 人类学 生物工程 生物学其他学科
搜索结果: 1-15 共查到生物学 Origin相关记录28条 . 查询时间(0.156 秒)
Sitting atop each kidney and measuring only around two centimeters long, the adrenal glands are tiny but mighty. These glands produce steroid hormones, including those involved in stress response, blo...
New research by Professor Beth Shapiro of the UC Santa Cruz Genomics Institute and University of Alberta Professor Duane Froese has identified North America’s oldest bison fossils and helped construct...
The role of the protein structural change monitored by absorption band shifts following flash photolysis of CO from myoglobin is discussed in terms of structure-function relationships. Evidence is pre...
A team of scientists at Cold Spring Harbor Laboratory (CSHL) has identified a set of genes that control stem cell production in tomato. Mutations in these genes explain the origin of mammoth beefsteak...
Acetes chinensis is an economically important shrimp that belongs to the Sergestidae family; following fermentation, A. chinensis′ economic value, however, is low in China, and much of the catch in Ch...
In order to protect the genetic resource of native horse breeds, the genetic diversity of mitochondrial DNA (mtDNA) D-loop of three native horse breeds in western China were investigated. Forty-three ...
This work faces the problem of the origin of the logarithmic character of the Gompertzian growth. We show that the macroscopic, deterministic Gompertz equation describes the evolution from the initial...
Canada and Mexico are formally challenging US country of origin (COOL) legislation at the World Trade Organization. The industries most affected by COOL are beef and pork. The effect of COOL on No...
This paper is about PLEC,but also about small farmers and biodiversity . Until a very few years ago, all agriculture was supposed to be the enemy of biodiversity . Now it is better understood that som...
I am indebted to the kindness of Mr. W. S. Dallas for this Glossary, which has been given because several readers have complained to me that some of the terms used were unintelligible to them. Mr. Dal...
WHEN on board H.M.S. Beagle, as naturalist, I was much struck with certain facts in the distribution of the inhabitants of South America, and in the geological relations of the present to the past inh...
FIRST EDITION OF THIS WORK AN HISTORICAL SKETCH OF THE PROGRESS OF OPINION ON THE ORIGIN OF SPECIES PREVIOUSLY TO THE PUBLICATION OF THE FIRST EDITION OF THIS WORK I WILL here give a brief sketch of...
In order to learn the origin of the Chinese Mongolian horse, we analyzed polymorphisms within the mtDNA D-loop variable region in 305 horses of 6 types of 3 different breeds, including one imported br...
摘要 1953年Watson & Crick 对于DNA双螺旋结构模型的提出及对其遗传机理的解释,标志着现代分子生物学的诞生。其后短短50年的时间里,分子生物学在各个学科之间广泛渗透,相互促进,不断深入和发展。在以研究人类的起源和进化为首要任务的人类学领域,由于现代分子生物学理论和方法的应用,诞生了分子人类学这一全新的结合型分支学科,为人类学的发展提供了科学可信的研究方法和具发展前景的研究方向。...
摘要1909年,约翰森创造“基因”(gene)一词作为遗传单位的名称。该词是由德?弗里斯创造的“泛生子”(pangene)一词缩短而成的,而“泛生子”一词则衍生于达尔文提出的“泛生论”(theory of pangenesis)。约翰森的这一创造堪称“推陈出新”的典范。 Abstract: In1909,Johannsen coined the word “gene”, shortened fr...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...