WBPSC Prelims and Mains Notes-WBPSC Test Series
Biotechnology and its Applications Biotechnology is defined as the industrial application of living organisms and their biological processes such as biochemistry, microbiology, and genetic engineering, in order to make best use of the microorganisms for the benefit of mankind. Modern biotechnology provides breakthrough products and technologies to combat debilitating and rare diseases, reduce our environmental … Read more
Rajasthan Agriculture Agriculture and allied sector continues to be the backbone of the State’s economy and endures to be the large contributor of the GSDP. 75 per cent population of the State resides in the rural areas and about 62 per cent depend on agriculture and allied activities for their livelihood. Agriculture and allied sector … Read more
Semiconductor Devices:- Semiconductor devices are electronic components that exploit the electronic properties of semiconductor materials, principally silicon, germanium, and gallium arsenide, as well as organic semiconductors. Semiconductor devices have replaced thermionic devices (vacuum tubes) in most applications. There are two basic groups or classifications that can be used to define the different semiconductor types: Intrinsic … Read more
Human health and diseases According to the World Health Organisation (WHO), health is defined as: Health is a state of complete physical, mental, and social well being and not merely absence of disease or infirmity. Good health of an individual is important in order to ensure happiness and our ability to work. There are many … Read more
Biodiversity-Defination, types, importance, hotspots, threats and conservation The term biodiversity was coined as a contraction of biological diversity by E.O. Wilson in 1985. Biodiversity may be defined as the variety and variability of living organisms and the ecological complexes in which they exist. In other words, biodiversity is the occurrence of different types of ecosystems, … Read more
Nervous system of human being The nervous system is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body. It is essentially the body’s electrical wiring. Structurally, the nervous system has two components: the central nervous system and the peripheral nervous system. According to the … Read more
Diseases – Communicable diseases, Endemic diseases Top 10 Causes of Death (Source: WHO World Health Statistics 2012) Ischemic heart disease 12 % Chronic obstructive pulmonary disease 11% Stroke 9% Diarrheal disease 6% Lower respiratory infections 5% Preterm birth complications 4% Tuberculosis 3% Self-inflicted injuries 3% Falls 3% Road injuries 2% Communicable diseases Communicable diseases continue … Read more
Principal of inheritance and variation Inheritance or Heredity is the genetic information passing for traits from parents to their offspring, either through asexual reproduction or sexual reproduction. This is the process by which an offspring cell or organism acquires or becomes predisposed to the characteristics of its parent cell or organism. Through heredity, variations exhibited … Read more
Current Electricity Electric current is the rate of flow of electric charge through a conducting medium with respect to time. It is caused by drift of free electrons through a conductor to a particular direction.Charges in motion constitute an electric current. Such currents occur naturally in many situations. Lightning is one such phenomenon in which … Read more
Safe drinking water is the birthright of all humankind – as much a birthright as clean air. The majority of the world’s population, however, does not have access to safe drinking water. This is certainly true in most parts of Africa and Asia. Even in relatively advanced countries such as India, safe drinking water … Read more