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By taking two examples explain how has bio-fortification helped in improving food quality.
Concept: Introduction of Strategies for Enhancement in Food Production
How does the application of cyanobacteria help improve agricultural output?
Concept: Microbes as Biofertilizers
"Man can be a primary as well as a secondary consumer." Justify this statement.
Concept: Strategies for Enhancement in Food Production (Questions)
Bottled fruit juices are clearer as compared to those made at home. Explain.
Concept: Introduction of Strategies for Enhancement in Food Production
What is gene therapy? Name the first clinical case in which it was used.
Concept: Applications of Biotechnology in Health and Medicine
Why does Bt toxin not kill the bacterium that produces it, but kill the insect that ingests it?
Concept: Applications of Biotechnology in Health and Medicine
Name the animals in which methanogens occur and the role they play there.
Concept: Microbes in Production of Biogas
One of the major contributions of biotechnology is to develop pest-resistant varieties of cotton plants. Explain how it has been made possible.
Concept: Principles of Processes of Biotechnology
Prepare a flow chart in formation of recombinant DNA by the action of restriction endonuclease enzyme EcoRI.
Concept: Processes of Recombinant DNA Technology
How do mycorrhizae help the plants to grow better?
Concept: Population >> Life History Variation
Name the two intermediate hosts which the human liver fluke depends on to complete its life cycle so as to facilitate parasitization of its primary host.
Concept: Population Interactions
There are many animals that have become extinct in the wild but continue to be maintained in Zoological parks.
(i) What type of biodiversity conservation is observed in this case?
(ii) Explain any other two ways which help in this type of conservation.
Concept: Conservation of Biodiversity
Iron (z=26) is highly ferromagnetic. Explain.
Concept: Properties of Solids: Magnetic Properties
Silver crystallises in FCC structure. If density of silver is 10.51 gcm-3, calculate the volume of unit cell. [Atomic mass of slive (Ag) = 108 gm-1]
Concept: Calculations Involving Unit Cell Dimensions
The major binding force in diamond is_______________ .
(a) Covalent bond
(b) Ionic bond
(c) Metallic bond
(d) Co-ordinate covalent bond
Concept: Classification of Crystalline Solids
What is the covalency of nitrogen in N2O5?
Concept: Classification of Crystalline Solids
8 g of glucose, C6H12O6 (Molar Mass = 180 g mol−1) is dissolved in 1 kg of water in a sauce pan. At what temperature will this solution boil?
(Kb for water = 0.52 K kg mol−1, boiling point of pure water = 373.15 K)
Concept: Colligative Properties and Determination of Molar Mass >> Elevation of Boiling Point
What type of semiconductor is obtained when silicon is doped with boron?
Concept: Properties of Solids: Electrical Properties >> Applications of n-type and p-type Semiconductors
What type of magnetism is shown in the following alignment of magnetic moments?
Concept: Properties of Solids: Magnetic Properties
What type of point defect is produced when AgCl is doped with CdCl2?
Concept: Imperfections in Solids - Introduction
