Science

Parthenogenesis Parthenogenesis, a reproductive strategy that involves development of a female (rarely a male) gamete (sex cell) without fertilization. It occurs commonly among lower plants and invertebrate animals (particularly rotifers, aphids, ants, wasps, and bees) and rarely among higher vertebrates. An egg produced parthenogenetically may be either haploid (i.e., with one set of dissimilar chromosomes) … Read more DMPQ: Define Parthenogenesis, Grafting and Layering.

Difference between Minerals and Ores                     Minerals                              Ores All the naturally occurring substances of metals which are present in the earth’s crust are known as Minerals. Ores are usually used to extract metals economically. A large amount of metals are present. All Minerals are not ores. All ores are minerals. Minerals are native form in … Read more DMPQ: Differentiate between Minerals and Ores

A fuel cell is a device which produces electric energy, through a chemical reaction. Fuel cells use positively charged ion(Hydrogen) and an oxidising agent (oxygen).There are many types of fuel cells, but they all consist of a cathode,an anode, and an electrolyte that allows positively charged( hydrogen) ions to move between the two sides of … Read more DMPQ: What is fuel cell? How Hydrogen fuel cell work? ( SCIENCE)

The survival of plants is dependent on a number of factors which include water, minerals, gases, and nutrients they receive. The movement of gas, water, and nutrients in plants are carried out in components. They take in carbon dioxide from the air through the stomata present in their leaves and they absorb compounds of nitrogen, … Read more DMPQ: Explain the transport of water in Plants

  A person can live a normal, healthy life with just one kidney. However, at least one kidney must function properly to maintain life. Diseases that threaten the health and functioning of the kidneys include kidney stones, infections, and diabetes. Kidney stones are mineral crystals that form in urine inside the kidney. They may be … Read more DMPQ: Write a short note on Kidney Disease and Dialysis

Some long-exploited biofuels, such as wood, can be used directly as a raw material that is burned to produce heat. The heat, in turn, can be used to run generators in a power plant to produce electricity. A number of existing power facilities burn grass, wood, or other kinds of biomass. Liquid biofuels are of … Read more DMPQ: What are the different types of Biofuels?

Starting with IRS-1A in 1988, ISRO has launched many operational remote sensing satellites. Today, India has one of the largest constellations of remote sensing satellites in operation. Currently, *thirteen* operational satellites are in Sun-synchronous orbit – RESOURCESAT-1, 2, 2A CARTOSAT-1, 2, 2A, 2B, RISAT-1 and 2, OCEANSAT-2, Megha-Tropiques, SARAL and SCATSAT-1, and *four* in Geostationary … Read more DMPQ: Mention the application of Earth Observation satellite of ISRO

  Thrust Areas Varietal Development and PVP Seed Production Quality Assurance Seed Distribution and Marketing. Infrastructure facilities Transgenic Plant Varieties Import of seeds and planting material Export of seeds Promotion of Domestic Seed Strengthening of monitoring system  

Conventional breeding, especially of crops, livestock and fish, focuses principally on increased productivity, increased resistance to diseases and pests, and enhanced quality with respect to nutrition and food processing. Advances in cellular genetics and cell biology methods in the 1960s contributed to the so-called ‘green revolution’ that significantly increased varieties of staple food crops containing … Read more DMPQ: Explain the Crop breeding and the introduction of GM crops for food production.

Surrogacy is a practise in which surrogate mother agrees to carry and give birth to child for intended couples. Surrogacy, also known as womb for rent.Surrogate mother is a woman who bears a child for another couple, inspires hope in them and changes their life forever i.e. An Angel.Intended couple are the ones who cannot … Read more DMPQ: What is surrogacy, surrogate mother and intended couple? Explain its different types? (science)