Science

Renovascular hypertension Renovascular hypertension is high blood pressure due to narrowing of the arteries that carry blood to the kidneys. This condition is also called renal artery stenosis. renal artery stenosis is a narrowing or blockage of the arteries that supply blood to the kidneys.  The most common cause of renal artery stenosis is a … Read more

Saras Mk2 It is a light transport aircraft which is indigenously developed by National Aerospace Laboratory (NAL) The 19-seater aircraft, developed with a target cost of ₹50 crore, is at least 20-25% lower in cost than other aircraft in the similar category. pitching or the government’s UDAN (Ude Desh Ka Aam Nagrik), since it has … Read more

The basis of ABO grouping is of two antigens- Antigen A and Antigen B. The ABO grouping system is classified into four types based on the presence or absence of antigens on red blood cells surface and plasma antibodies. Group A – contains antigen A and antibody B. Group B –contains antigen B and antibody A. Group … Read more

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA’s instructions, or genetic code. Human DNA has around 3 … Read more

Allotrope: An element, in different forms, having different physical properties but similar chemical properties is known as allotropes of that element. Carbon has three well known allotropes which are graphite, diamond and buck minster fullerene. These are formed by carbon atoms. Following are the allotropes of carbon: Graphite:  Each carbon atom is bonded to three other carbon atoms … Read more

In the strictest sense, a super earth is just a planet with more mass than Earth, but less than a larger planet like Uranus or Neptune. So, super earths made of rock and metal, or even ice and gas. These planets could have oceans and atmospheres, or made of nothing but hydrogen and helium. The … Read more

Zika virus disease is caused by a virus transmitted primarily by Aedes mosquitoes, which bite during the day.Zika virus is a mosquito-borne flavivirus that was first identified in Uganda in 1947 in monkeys. It was later identified in humans in 1952 in Uganda and the United Republic of Tanzania.Symptoms are generally mild and include fever, … Read more

Digital India is an umbrella programme that covers multiple Government Ministries and Departments. It weaves together a large number of ideas and thoughts into a single, comprehensive vision so that each of them can be implemented as part of a larger goal. Each individual element stands on its own, but is also part of the … Read more

It refers to the elimination/removal of metabolic wastes from the body. There are four major organs of excretions : kidney, lungs, skin and the liver. Out of these four organs kidneys are the primary excretory organs that eliminate metabolic waste products in the form of urine. The major functions of urine are: Excretions of wastes … Read more

The Codex Alimentarius is the food code that has become the global food standard for consumer foods, food producers and processors, national food regulatory agencies and international trade practices. The code has enormous impact and its influence extends to every continent. The Codex Alimentarius Commission was created in 1963 by the UN Food and Agricultural … Read more