Bihar Board Class 12 (Science) Strategies for Enhancement in Food Production — practice questions
64 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice Bihar Board Class 12 (Science) Strategies for Enhancement in Food Production in the app →Raising domesticated animals for milk, meat, eggs or labour is called what?Fermented grass stored as fodder for the lean season is known as what?What is hay, as used for feeding livestock in lean seasons?Which two common livestock are omnivorous, unlike most herbivorous farm animals?Which of these farm animals is a non-ruminant?Which trait would a farmer breeding livestock select against?Diseases that humans may acquire from animals are called what?Which farm animal passed Nipah virus to humans in Malaysia in 1999?Which animal is predominantly used worldwide for milk production?Which cattle type is specialised for producing large amounts of milk economically?In a zero grazing system, how is a dairy cow fed?Which birds make up the great majority of laying birds for egg production?What are chickens raised indoors in large sheds for meat called?Aquaculture refers to the farming of which of these?What do fish hatcheries supply to fish farms?On which leaves do silkworm larvae feed in sericulture?Beekeeping is also known by which technical name?Which genus contains the honey bees most commonly kept by beekeepers?Which of these is a product collected from beehives?In a honey bee colony, which member is the only egg-layer?What do unfertilized eggs laid by a honey bee queen develop into?Why do beekeepers use a smoker during hive inspection?Which microsporidian causes nosemosis, a common disease of adult honey bees?What damage do wax moth larvae do to a bee colony?Plant breeding is the science of doing what to plants?Deliberate interbreeding of related plants to create new varieties is called what?A mildew-resistant pea is crossed with a high-yielding susceptible pea. What is the aim?Classical plant breeding relies mainly on which process to generate diversity?Whose findings on inheritance did early 20th century plant breeders apply to crosses?Cytoplasmic male sterility in maize lets breeders avoid which laborious task?Cytoplasmic male sterility is a maternally inherited trait causing which effect?Triticale is a hybrid cereal of which two crops?Fusing isolated plant cells without walls, often in an electric field, is called what?Which chemical is used as a mutagen in plant mutation breeding?Which tools let breeders screen large populations for a trait by its genes?A doubled haploid plant is what with respect to desired traits?Which bacterium is commonly used to insert a genetic construct into a plant?Bt crops carry a gene from which bacterium?Bt cotton is protected mainly against which pest?Which scientist mainly led India's Green Revolution?The global Green Revolution was initiated by which agricultural scientist?Who is called the Father of the Wheat Revolution in India?Which food minister is called the Political Father of the Green Revolution?Which Indian state first received the Green Revolution and grew fast by 1970?Which crisis gave a rationale for starting India's Green Revolution?Which is a criticised environmental effect of the Green Revolution?Why did the Green Revolution widen regional disparities in India?Biofortification is the practice of doing what to crops?How does biofortification differ from ordinary fortification?Golden rice has increased levels of which compound that the body converts to vitamin A?Golden rice is an example of which kind of crop?The meat substitute Quorn is made from which fungus?What waste materials can microbes ferment to make single-cell protein?Which vitamin can microorganisms make that plants cannot produce in useful amounts?A high RNA content in single-cell protein can raise levels of which compound, causing gout?Why does single-cell protein production not compete with agriculture?Rapidly multiplying plant stock material using tissue culture is called what?Which tissue culture method can give a disease-free plant?A callus is a mass of what kind of cells?Callus growth in culture varies with which two growth regulators?What is the purpose of hardening plantlets before moving them to soil?Which enzymes are used to isolate cells for protoplast culture?Artificial insemination is common in breeding of which animals?Who recorded the first artificial insemination, performed on a dog in 1784?