Q. What is ‘DNA finger printing’? Which research institution in India is working in this area? (42 BPSC/1999)DNA fingerprinting (Also called DNA profiling) is a method used to identify an individual from a sample of DNA by looking at unique patterns in their DNA.Uses: a forensic technique in criminal investigations, comparing criminal suspects’ profiles to …
Q. What is bio-gas technology? What are the steps taken by Government of India towards its development? (40 BPSC/1995) Ans: Biogas is a gas mixture which is generated when organic compounds are fermented in the absence of air (anaerobic fermentation). This gas mixture is mainly made of carbon dioxide (CO2) and methane (75%) and may …
Q. What is remote sensing? Describe the status of remote sensing in India. (42 BPSC/1999)Remote sensing is the acquisition of information about an object or phenomenon without making physical contact with the object. In current usage, the term “remote sensing” generally refers to the use of satellite or aircraft-based sensor technologies to detect and classify …
Q. Write short notes on Blood Groups. (40 BPSC/1995)The blood groups are a classification of blood, based on the presence and absence of antibodies and inherited antigenic substances on the surface of red blood cells (RBCs). These are inherited and represent contributions from both parents. A total of 36 human blood group systems and 346 …
Q. Write short notes on Blood Groups. (40 BPSC/1995) Read More »
Q. What is cloning? Write the scientific merits and demerits of cloning. (43 BPSC/2001) Ans: Cloning is the process of producing individuals with identical or virtually identical DNA, either naturally or artificially. In nature, many organisms produce clones through asexual reproduction. e.g. reproduction method used by plants, fungi, and bacteria, and is also the way …
Q. What is cloning? Write the scientific merits and demerits of cloning. (43 BPSC/2001) Read More »
Q. What are chemical war fare agents (Chemical weapons)? How they are harmful to human health and environment? (43 BPSC/2001) Ans: Chemical warfare agents (CWAs) comprise a diverse group of extremely hazardous materials. These are chemical substance whose toxic properties are used to kill, injure or incapacitate human beings. As potential weapons of mass destruction, …
Q. Critically discuss the positive and negative effects of globalization in India. How can science and technology reduce negative effects ? Explain. (56-59 BPSC/2016)Globalisation is the process of interaction and integration among people, companies, and governments worldwide. It leads to increasing exchange of people, views, products, ideas and other aspects of culture. The national boundaries …
Q. Present-day government is trying to develop smart cities in different States. What are your visions about smart cities? Elucidate the role of science and technology in the development of ideal smart cities. (64 BPSC/2018)Ans:Smart cities: A smart city is an urban area that uses different types of electronic Internet of things (IoT) sensors to …
Q. Explain in detail, how the advances in the field of nuclear energy helped in the development of our country. Also comment on the use of nuclear energy in power production field. Outline the positive and negative sides of nuclear energy. (63rd BPSC/2018) OR With growing energy needs, should India keep on expanding its nuclear energy …
Q. Which drugs are extracted from plants and trees? How can these be developed with the help of a computer? (46 BPSC/2005) Ans: Most of the drugs we use today came from plants originally. Plant chemicals (phytochemicals) are responsible for some of the most important medical advancements of our time.Some examples include: Antibiotics Chemotherapy Pain …
