Science DMPQ

Axis of evil: Axis of evil, expression used to describe the bellicose tendencies of Iran, North Korea, and Iraq in the early 21st century. The phrase was coined by Canadian-born U.S. presidential speechwriter David Frum and presidential aide Michael Gerson for use by U.S. President George W. Bush in his 2002 State of the Union address. b) Golden crescent: The Golden Crescent is a mountainous area of Iran, … Read more

Genetic modified crop as the name suggest is modified form of crop in which nuclear material of parent crop is altered and modified to its advantage by use of genetic engineering. Example of genetic crops are Bt cotton, bt brinjal etc. Advantage: Drought resilient varieties, pest resilient varieties can be grown. This will bring sustainability … Read more

Biofertilisersare organisms that enrich the nutrient quality of the soil. The main sources of biofertilisers are bacteria, fungi and cyanobacteria. Rhizobium bacteria is found in symbiotic assosiation the root nodules of leguminousplants. These bacteria fix atmospheric nitrogen into organic forms, which is used bythe plant as nutrient.Azotobacter and Azospirillum also fix atmospheric nitrogen, but these … Read more

The Human genome project was a large, international and multi-institutional effort that took 13 years from 1999 and $2.7 billion to produce a blueprint of the sequence of genes and space between  genes that make up a typical human genome. Following were the observation of HGP (read)- 99% of the total human DNA is junk … Read more

Application: In India radar imaging are used for crop estimation because our main crop growing season of kharif is in May-September when it rains and gets cloudy. We have used this data extensively for forestry, soil, land use, geology and during floods and cyclone. Due to an all-weather seeing feature, the satellite becomes special for … Read more

Hydroponics is a subset of hydroculture, the method of growing plants without soil, using mineral nutrient solutions in a water solvent.With hydroponics the plants are grown in an inert growing medium and a perfectly balanced, pH adjusted nutrient solution is delivered to the roots in a highly soluble form. Advantages of hydroponics: No soil is … Read more

Ministry Of Earth Sciences Plans Rs 8000 Crore ‘Deep Ocean Mission’ To Boost India’s Sea Exploration Capabilities. The mission proposes to explore the deep ocean similar to the space exploration started by ISRO about 35 years ago.The focus of the mission will be on deep-sea mining, ocean climate change advisory services, underwater vehicles and underwater … Read more

. Bioremediation is a branch of biotechnology that employs the use of living organisms, like microbes and bacteria, in the removal of contaminants, pollutants, and toxins from soil, water, and other environments. Bioremediation may be used to clean up contaminated groundwater or environmental problems, such as oil spills. Bioremediation relies on stimulating the growth of … Read more

Noncommunicable diseases (NCDs), also known as chronic diseases, tend to be of long duration and are the result of a combination of genetic, physiological, environmental and behaviours factors. The main types of NCDs are cardiovascular diseases (like heart attacks and stroke), cancers, chronic respiratory diseases (such as chronic obstructive pulmonary disease and asthma) and diabetes. … Read more