A signal turnover system is an essential component of many genetic regulatory mechanisms. The best-known example is the ubiquitin-dependent protein degradation system that exists in many organisms. We found that Agrobacterium tumefaciens adopts a unique signal turnover system to control exiting from a quorum-sensing mode. A. tumefaciens regulates Ti plasmid conjugal transfer by a quorum-sensing...

Family, the basic unit of society, all over the world has been undergoing many fundamental changes and profound transformation due to comprehensive socio-economic development and technological advancement. This paper is a humble attempt to examine the factors affecting changes in family pattern, age at marriage, practice of dowry and divorce in family life of Bangladesh. The major factors affec...