Science Tech

 Biotechnology in agriculture For about 10,000 years , farmers have been improving wild plants and animals through the selection and breeding of desirable characteristics. This breeding has resulted in the domesticated plants and animals that are commonly used in crop and livestock agriculture. In the twentieth century, breeding became more sophisticated, as the … Read more

 Total internal reflection Subscribe on YouTube Total internal reflection, in physics, complete reflection of a ray of light within a medium such as water or glass from the surrounding surfaces back into the medium. The phenomenon occurs if the angle of incidence is greater than a certain limiting angle, called the critical angle. … Read more

 Subscribe on YouTube   Blood: Composition and Function   Blood has many functions including transportation of nutrients round the body, maintaining homeostasis and the immune system. It is made up of plasma, red blood cells, white blood cells and platelets.     Function of blood   Transportation: The blood … Read more

Join Our Telegram Channel  Molecular breeding and marker assisted selection Molecular breeding Molecular Breeding or Marker assisted breeding (MAB) is the process of using the results of DNA tests to assist in the selection of individuals to become the parents in the next generation of a genetic improvement program. The choice among various … Read more

 Usefulness of animals and human affairs As food Subscribe on YouTube The human population exploits a large number of animal species for food, both of domesticated livestock species in animal husbandry and, mainly at sea, by hunting wild species.  Marine fish of many species, such as herring, cod, tuna, mackerel and anchovy, are … Read more

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 Introduction to alkaloids (nicotine and cocaine) Alkaloids, any of a class of naturally occurring organic nitrogen-containing bases. Alkaloids have diverse and important physiological effects on humans and other animals. Well-known alkaloids include morphine, strychnine, quinine, ephedrine, and nicotine. Alkaloids are found primarily in plants and are especially common in certain families of flowering … Read more

 Fermentation Fermentation, chemical process by which molecules such as glucose are broken down anaerobically. More broadly, fermentation is the foaming that occurs during the manufacture of wine and beer, a process at least 10,000 years old. The frothing results from the evolution of carbon dioxide gas, though this was not recognized until the … Read more

 Biotechnology in agriculture For about 10,000 years , farmers have been improving wild plants and animals through the selection and breeding of desirable characteristics. This breeding has resulted in the domesticated plants and animals that are commonly used in crop and livestock agriculture. In the twentieth century, breeding became more sophisticated, as the … Read more

 Digital divide & its prevention Subscribe on YouTube Digital technologies have spread rapidly in much of the world. Digital dividends—the broader development benefits from using these technologies have lagged behind. In many instances digital technologies have boosted growth, expanded opportunities, and improved service delivery. Yet their aggregate impact has fallen short and is … Read more