Although the rat is a preferred model in many fields of biomedical sciences, the inability to generate germline competent embryonic stem (ES) cells was a major drawback for research activities that aimed to elucidate gene functions. Several alternative strategies like N-ethyl-N-nitrosourea (ENU) or transposon-mediated mutagenesis were developed successfully for this species. Countless experimen...

Rhizobium-legume symbiosis begins with two free living organisms, and ends with an intimate cellular co-existence. Rhizobium bacteria recognize specific plants, provoke development of a root nodule, and invade the plant tissue. Eventually, the Rhizobium cell transfers itself into a host cell, surrounds itself with plant membrane, and arranges a nutrient exchange in which the bacteria brings fix...

Since 1991, the Rice Genome Research Program in Japan has carried out rice genomics, such as large-scale cDNA analysis, construction of a fine-scale restriction fragment length polymorphism map, and physical mapping of the rice genome with yeast artificial chromosome clones. These studies have made a great impact on research into grass genomes and made rice a model plant for other cereal crop r...

the main purpose of this article is studing un’s actions to counter international terrorism giving to development of it after cold war.we are going to answer the question in descriptive-analtical way that what was un’s practical actions to counter it and weather it was successful.to answer the main question of this article first we will diccuss the development of terrorism after cold war and ne...