Science

What is catalytic converter? What is its significance. Ans:       Catalytic converters, having expensive metals namely platinum palladium and rhodium as the catalysts, are fitted into automobiles for reducing emission of poisonous gases. As the exhaust passes through the catalytic converter, unburnt hydrocarbons are converted into carbon dioxide and water, and carbon monoxide and nitric oxide … Read more

A blockchain is a digitized, decentralized, public ledger of all cryptocurrency transactions. Constantly growing as ‘completed’ blocks (the most recent transactions) are recorded and added to it in chronological order, it allows market participants to keep track of digital currency transactions without central recordkeeping. Each node (a computer connected to the network) gets a copy of the blockchain, which is downloaded … Read more

A concern about what affect genetically modified material could have on human health. For example, transgenic crops have been suggested to cause allergies in some people, although it is uncertain whether transgenic crops are the source of this reaction. Furthermore the antibiotic resistance genes placed in these crops has been suggested to cause resistance to … Read more

Quick Revision Topic:                pH scale and its day to day application   Definition:                  pH scale is the scale developed to measure the concentration of Hydrogen ion in a solution. Here ‘p’ in pH implies ‘potenz’ in german. The pH of a neutral solution is 7. for Acidic solution pH is less than 7 and … Read more

Adaptive immunity develops when innate immunity is ineffective in eliminating infectious agents and the infection is established. The primary functions of the adaptive immune response are the recognition of specific “non-self” antigens in the presence of “self” antigens; the generation of pathogen-specific immunologic effector pathways that eliminate specific pathogens or pathogen-infected cells; and the development … Read more

Neutrinos are the elementary particles found in the universe, which have no charge and have very little mass. They are electrically neutral and have weak interactive force. They are generally formed in the nuclear core of the sun. Radio active decay is also one of the source of neutrinos. They have the unique property of … Read more

A transgenic crop is a genetically modified organism (GMO). Transgenic indicates that a transfer of genes has occurred using recombinant DNA technology. Generally a transgenic crop contains one or more genes that have been inserted artificially either from an unrelated plant or from different species altogether. Plants have been modified for many reasons over the … Read more

E commerce is the sale or purchase of goods and services conducted over networks of Tv and computers.  The use of internet and network is the key feature of e commerce.  According to a report by KPMG, e-Commerce sector in India is projected to cross $80 billion by 2020 and $300 billion by 2030. The … Read more

Artificial intelligence is a way of programming a computer, robot to perform human like task such as visual perception, speech recognition, decision making and translation between language.   Artificial intelligence has wide application cutting across all sectors: In agriculture artificial intelligence is used for precision farming. This will increase the productivity and lower the input … Read more

Yamanaka factors (Oct3/4, Sox2, Klf4, c-Myc) are highly expressed in embryonic stem (ES) cells, and their over-expression can induce pluripotency in both mouse and human somatic cells, indicating that these factors regulate the developmental signaling network necessary for ES cell pluripotency. However, systemic analysis of the signaling pathways regulated by Yamanaka factors has not yet … Read more