DMPQ: What is Nitrogen cycle. Explain its various stages. (science)

The nitrogen cycle is a complex biogeochemical cycle in which nitrogen is converted from its inert atmospheric molecular form (N2) into a form that is useful in biological processes. The Nitrogen cycle contains various stages: Nitrogen fixation: Inert form of Nitrogen is fixed and converted into organic form in a process called nitrogen fixation. Most … Read more

DMPQ: Explain carbon cycle. ( science)

The element carbon is a part of seawater, the atmosphere, rocks such as limestone and coal, soils, as well as all living things. On our dynamic planet, carbon is able to move from one of these realms to another as a part of the carbon cycle. It is one of the important cycle of atoms … Read more

DMPQ: Quality of Air in Delhi is getting worsen day by day. What are the causes for air pollution in Delhi. Suggest ways to deal with the problem of air pollution. ( Envt)

Delhi has become a smoke chamber in the recent past especially in winters. The changes in temperature  and slowing wind traps soot, dust fine and particulate matter. The reasons for air pollution are as follows: Burning of agricultural residue in Punjab and harayana. Farm stubble burning. This reason got aggravated because of the use of … Read more

What is a disease? Discuss the type of disease? ( Science)

Disease is a condition that impairs the proper functioning of the body or its parts. A disease can be defined as: Any deviation from normal functioning or state of complete physical and mental well being. Types of diseases: The human diseases are broadly classified into following four categories: Acute diseases Chronic diseases Congenital diseases Acquired … Read more

DMPQ: What is biofortification? AND tissue Culture

  What is biofortification? Ans:          Biofortification is the process of breeding crops with higher levels of vitamins and minerals, or higher protein and healthier fats. Breeding for improved crops with higher levels of vitamins and minerals, or higher protein and healthier fats. Breeding is done with the objective of improving protein content and quality. Oil … Read more

DMPQ: What is immunity? Explain the types of immunity?

Immunity is the ability of the body to fight against infectious agents. The immunity can be classified as innate immunity and acquired immunity. Innate immunityis a non-specific type of defense mechanism.  It has four types: i) Physical barrier: Example, skin covering of the body, secretion of mucous in the respiratory tract ii)Physiological barrier: Example, acid in the … Read more

DMPQ: Micropropagation, Somatic hybridisation, Single cell protein, Mutation breeding

Micropropagation Ans:  Method of producing thousands of plants through tissue culture is called micropropagation. Each of these plants will be genetically identical to the original plant from which they are grown. They are soma clones. Somatic hybridisation Ans:  In somatic hybridisation cell wall is removed by digesting it with enzyme like pectinase and cellulase. Isolated … Read more

DMPQ: What is Anti microbial resistance?

What is Anti microbial resistance? Ans: Antimicrobial resistance is the ability of a microorganism like bacteria, viruses and some parasites to stop an antimicrobial from working against it . The resistance reduces or eliminates the effectiveness of these drugs, chemicals, or other agents designed to cure or prevent infections. What is VoLTE? Ans: Voice over … Read more

DMPQ: (science) Asteroids Meteoroids Meteors Meteorites

Asteroids Ans:   They are small bodied rock that moves around the sun. the asteroid belt in our solar system is found between the Mars and the Jupiter.   Meteoroids Ans:   Due to the collision of two asterroids small fragments break off from each other . These fragments are called Meteoroids.     Meteors Ans:   when … Read more

DMPQ: Define all All four questions are from science- Neutrino, Indian -based Neutrino observatory, Goldilock zone, Internet of things

Neutrino Ans:   Neutrinos are one of the fundamental particles which make up the universe and second most abundant particle in the universe after photon. Neutrinos are similar to electron with one crucial difference that they don not carry electric charge.   Indian -based Neutrino observatory Ans:   It is being set up in Bodhi west Hill, … Read more

DMPQ: Explain: Prahaar,  Sagarika, Shaurya

Prahaar –            The Prahaar is India’s latest surface-to-surface missile with a range of 150 kms. The primary objective of the conventionally armed Prahaar missile is to bridge the gap between the unguided Pinaka multi-barrel rocket launcher (ranging 45 kms) and the guided Prithvi missile variants. Stated to be a unique missile, the Prahaar boasts of … Read more

DMPQ: what are the benefits attached in adopting electric vehicles in India?

An electric car is an automobile that uses an electric motor as it’s primary source of propulsion. Electric vehicles (EVs) use electrical energy which is stored in rechargeable batteries. One of the primary benefits of an EV is the lack of tailpipe emissions. The term electric vehicle (EV) is commonly used to refer to three main types of automotive drivetrains. These are Battery … Read more

DMPQ: What is National Biopharma scheme? ( science/ scheme)

National Biopharma scheme is an industry academia collaborative mission launched by Department of Biotechnology to develop new vaccines, bio-therapeutics, diagnostics and medical devices.  The mission will be implemented by BIRAC( Biotechnology Industry Research assistance Council) .   Objective: Nurture an ecosystem for preparing India’s technological and product developmental capabilities Transform the health standards of India … Read more

DMPQ: What is digestion and digestive system? Explain the mechanism of digestion of food?

Digestion is the process of break down of complex food substance into simple molecules.  Digestion is carried out by our digestive system by mechanical and biochemical method. The digestive system consists of alimentary canal and the associate glands. The process of digestion is accomplished by mechanical and chemical processes. The buccal cavity performs two major … Read more

DMPQ: What is MIRV? Discuss its significance.

The most vital component of missile technology in recent years is the deployment of Multiple Independently targetable Re-entry Vehicle (MIRVs). The fundamental characteristic of deploying MIRVs is its ability to deliver several warheads along separate trajectories, which confers it flexibility of multiple targeting. The independent targeting capability enhances missile’s ability by exhausting the missile defence, … Read more

DMPQ: What is catalytic converter? What is its significance.  and What is galvanisation?

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

DMPQ: What is Biopiracy? Give some examples?

Biopiracy is the practice of commercially exploiting naturally occurring genetic material or biochemical. Most of the indigenous people possess a traditional knowledge that mainly comprises of genetic diversity and biological feature of the natural environment from generation to generation. Some of the traditional knowledge that is relevant to global survival includes the following components. Medicinal … Read more

DMPQ: Explain the following term: a) Biomagnification b) Bioremediation

Biomagnification:         Biomagnification refers to increase in concentration of the toxicant at successive trophic levels. This happens because a toxic substance accumulated by an organism cannot be metabolised or excreted, and is thus passed on to the next higher trophic level. This phenomenon is well known for mercury and DDT. Bioremediation:  Bioremediation is a biotechnical process, … Read more

DMPQ: What are ethical issues attached with Biotechnology? Discuss in detail.

The progress of science in the 20th and 21st centuries exploded, creating technologies that reshaped society and extended lives. The pace of change was so great that it took society years to start asking questions about the ethics or morality of new developments. Now, humanity is at a major crossroads, where further investment in biotechnologies could change the way humans live … Read more

DMPQ: Enumerate the difference between ballistic and cruise missile.

  Ballistic Cruise Launched directly into the high layers of the earth’s atmosphere A cruise is a guided missile that can destroy a target over long distance with high accuracy. Follows parabolic path Does not follow parabolic path It depends on gravity hence called ballistic. Does not depend upon gravity Classified by coverage Classified by … Read more

DMPQ: Explain the Concepts of air breathing propulsion and re-usable launch vehicle? How these two technology can be game changer for our quest for space?

Air breathing propulsion system: In order to provide thrust by the launch vehicles propellants are used. 70% of the constituent of propellant is oxidiser.  So air breathing propulsion system utilise the atmospheric oxygen as an oxidiser to burn the fuel. Ramjet, Scramjet and Dual Mode Ramjet (DMRJ) are the three concepts of air-breathing engines which … Read more

DMPQ: What are Chemical weapons? Give some examples.? List down the conventions against the use of chemical weapons.

Chemical weapons are specialised weapons that deliver chemicals that inflict death or injury on humans through chemical actions. They are also called poor man’s bomb because they are relatively cheap and easy to produce. Example of chemical weapons are mustard gas, phosgene, chlorine and nerve agents sarin and VX.           Sarin: The UN had confirmed … Read more

DMPQ: What is Integrated Guided Missile Development programmes?

The Integrated Guided Missile Development Programme (IGMDP) was conceived by renowned scientist Dr. A P J Abdul Kalam to enable India attain self-sufficiency in the field of missile technology. The following are the Key components of the Programme:   Short-range surface-to-surface ballistic missile Prithvi-The Prithvi missile is a family of tactical surface-to-surface short-range ballistic missiles … Read more

DMPQ: What are allotropes? Discuss the allotropes of carbon with their features

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

DMPQ: Higher teledensity will help to solve various problems. In light of this discuss the recently drafted National telecom policy.

The national telecom policy in work will focus on complete transition of the country from physical to digital infrastructure, with norms to push availability of high speed and uninterrupted broadband services in mission mode.   One of the key strategies in the draft talks of recognising spectrum as a key natural resources for public benefit … Read more

DMPQ:  Discuss the role played by DRDO in Life science field. 

DRDO has played a stellar role since its inception in 1958. Having established a sound ecosystem and supported by a large pool of committed manpower, we have today a proven competence to produce strategic and state-of-the-art tactical military hardware and related technologies, in diverse disciplines covering Aeronautics, Missiles, Naval Systems, Armament & Combat Engineering, Electronics, … Read more

DMPQ: Discuss the types of nuclear reactors.

Most of the nuclear reactors work on the principle of nuclear fission. The energy released in the reaction is used to turn water into steam. The steam is used to run the turbine. Diff types of nuclear reactor: Type of reactor Characteristics Light water reactor 1.    Boiling water reactor ·         Reactor core heats water which … Read more

DMPQ: Discuss the types of nuclear reactors.

Most of the nuclear reactors work on the principle of nuclear fission. The energy released in the reaction is used to turn water into steam. The steam is used to run the turbine. Diff types of nuclear reactor: Type of reactor Characteristics Light water reactor 1.    Boiling water reactor ·         Reactor core heats water which … Read more

DMPQ: What is Li-fi technology? List down its application

Light fidelity(Li-Fi) is a revolutionary new technology that transmit high speed data using lights. It is perceived to be 100 times faster than Wifi technology which is based on radio wave communication. Potential application: Mobile connectivity: Increase in the mobile connectivity. Laptops, smart phones, tablets and other mobile devices can interconnect directly using Li-Fi. Short … Read more

DMPQ: What is 3 parent child?

It is an advance technology of genetic engineering to rectify the abnormalities occurring in the mitochondria due to mutation. The mutation severely affects the functioning of mitochondria in the baby. As a result baby may suffer from disease like Alzheimer’s and Parkinson disease. In sexual reproduction, Mitochondrial DNA is obtained from exclusively from the mother. … Read more

DMPQ: What is net neutrality? Write down the significance.

Net neutrality is the principle that internet service providers and governments should    treat all data on the internet equality , not discriminating or charging differently by user, content, site, platform application, type of attached equipment or mode of communication.      It is about not giving special privileges to some website like in the form of speeding … Read more

DMPQ: What is net neutrality? Write down the significance.

Net neutrality is the principle that internet service providers and governments should    treat all data on the internet equality , not discriminating or charging differently by user, content, site, platform application, type of attached equipment or mode of communication.      It is about not giving special privileges to some website like in the form of speeding … Read more

DMPQ: What are GM crops? Discuss its advantage and issue involved.

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

DMPQ: What is blockchain technology? List down advantage and application

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

DMPQ: What is artificial intelligence? List down its application.

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

DMPQ: What are malware? What are its different types?

These are destructive software or malicious one which exists in the form of computer virus, computer worm, trojan or trojan horse which may get attached to email or gets in a file while downloading from a website or via compact discs. In the world of cyber era these software are highly dangerous. The types of … Read more

DMPQ: What is coral bleaching? What are the causes of coral bleaching? 

When there are changes in the condition like temperature, light or nutrients the symbiotic linkage between algae and zooxanthellae gets deteriorated, causing them to turn white. In coral bleaching the density of zooxanthellae decline and the concentration of photosynthetic pigment decline which lead to decline in color. 20% of the coral reefs have already been … Read more

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