Science

Stem Cells: Stem cells are a class of undifferentiatedcells that are able to differentiate into specialized celltypes. Commonly, stem cells are of the followingtypes: Embryonic stem cells – derived from the inner cellmass of an embryo and these are capable offorming any cell types of the bodyAdult stem cells – also known as somatic stem … Read more

  Gene Chromosomes They are located on the chromosomes. Chromosomes are the packed structure of a DNA with proteins. Genes are composed of either DNA or RNA Chromosomes composed of DNA, RNA and histones. According to Human genome project, there are 30,000 genes in the human cell. In Human cell there are 23 pair of … Read more

  (a)Male and Female reproductive organ:    The male reproductive organs include a pair of testes (singular, testis), two sperm ducts and a penis. The testes produce the male gametes called sperms. The female reproductive organs are a pair of ovaries, oviducts (fallopian tubes) and the uterus. Ovary produces female gametes called ova (eggs).   (b)Asexual production:  It is a … Read more

Defluoridation is the downward adjustment of the level of fluoride in drinking water. Worldwide, fluoride is one of the most abundant anions present in groundwater. Fluoride is more present in groundwater than surface water mainly due to the leaching of minerals. Groundwater accounts for 98 percent of the earth’s potable water. An excess of fluoride … Read more

a) Green Climate fund: It is a fund within the framework of the UNFCCC founded as a mechanism to assist developing countries in adaptation and mitigation practices to counter climate change. It was established in COP 16, held in Cancun. The GCF  is based in the Incheon, South Korea IPCC:   It is the leading … Read more

The history of medicinal plants is intimately connected with the history of botany. Primitive man, in constant terror of diseases, lived at the mercy of nature. From the earliest times, tribal priests and medicine men (witch doctors) used various plants, minerals and animal organs, usually in association with strange rituals and incantation, to drive out … 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

A biometric system is a technology which takes an individual’s physiological, behavioral, or both traits as input, analyzes it, and identifies the individual as a genuine or malicious user. Basic Components of a Biometric System Input Interface (Sensors) It is the sensing component of a biometrics system that converts human biological data into digital form. … Read more

Captive breeding is the process of breeding animals outside of their natural environment in restricted conditions in farms, zoos or other closed facilities. The choice of individual animals that are to be part of a captive breeding population, and the mating partners within that population, are controlled by humans. Advantages: • Endangered animals have a … Read more