UPSC CSE Biotechnology — practice questions
44 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice UPSC CSE Biotechnology in the app →A farmer plants cotton whose genes were altered to resist bollworms. Such an organism is a:Golden rice was engineered to enhance which nutrient?Bt toxin is produced by the bacterium:The Bt toxin stays inactive as a protoxin until it meets the insect gut's:Tobacco plants were protected from the nematode Meloidogyne incognita using:Nematode-specific genes were introduced into tobacco using which vector?About how many recombinant therapeutics are approved for human use worldwide?Before recombinant insulin, insulin was extracted from the pancreas of:Pro-insulin contains an extra stretch removed during maturation, called the:Human insulin chains were first produced in E. coli in 1983 by:The first clinical gene therapy in 1990 treated a girl with a deficiency of:Very low concentrations of a virus can be detected before symptoms by amplifying nucleic acid with:PCR is routinely used to detect which virus in suspected AIDS patients?ELISA works on the principle of:Over 95 percent of existing transgenic animals are:Rosie, the first transgenic cow of 1997, produced milk enriched with:Transgenic mice are being used to test the safety of which vaccine?Which Indian body decides the validity of GM research and safety of releasing GM organisms?In 1997 an American company obtained a patent on:Use of bio-resources by multinational companies without proper authorisation is called:Industrialised nations are rich financially but poor in:Patent attempts have been made on Indian traditional medicines such as turmeric and:The word ecology comes from the Greek oikos, meaning:Which German zoologist first used the term ecology, as oekologie, in 1869?A system consisting of biotic and abiotic components is known as an:The two major types of ecosystems are terrestrial and:A plant and animal community covering a large geographical area is a:Boundaries of biomes on land are determined mainly by:Marine ecosystems include the oceans, estuaries and:Green plants that manufacture their own food by photosynthesis are the:Deer, goats and mice, the plant-eating animals, are:Hawks and mongooses, which also feed on other carnivores, are called:Vultures and crows that feed on dead organisms are examples of:A beetle eaten by a frog, eaten by a snake, eaten by a hawk, is an example of a:Interlocking food chains together form a:The two recognised types of food chain are the grazing chain and the:The number of levels in a food chain usually ranges between:How many major biomes of the world are recognised?What fraction of solar insolation reaching the surface is fixed in photosynthesis?The atmosphere and hydrosphere have kept about the same chemical balance for the last:Cyclic movements of chemical elements between organisms and environment are called:In the gaseous biogeochemical cycle, the main reservoir of nutrients is:In the sedimentary cycle, the main reservoir of nutrients is:The basic source of energy on which all life depends is the: