Consider the following minerals :
(1). Calcium
(2). Iron
(3). Sodium
Which of the minerals given above is/are required by human body for the contraction of
muscles?
Science and Technology
-
Biology,Human Physiology
-
Science and Technology › Biology,Human Physiology
Which of the following statements is/are correct?
(1). Viruses lack enzymes necessary for the generation of energy.
(2). Viruses can be cultured in any synthetic medium.
(3). Viruses are transmitted from one organism to another by biological vectors only.
Select the correct answer using the codes given below.Options
Answer
(A)
-
Chemistry
-
Genetics,Biotechnology
Science and Technology › Genetics,Biotechnology
Mycorrhizal biotechnology has been used in rehabilating degraded sites because mycorrhiza enables the plants to
(1). resist drought and increase absorptive area
(2). tolerate extremes of pH
(3). resist disease infestation
Select the correct answer using the codes given below.Options
Answer
(D)
-
Science and Technology › Genetics,Biotechnology
Recombinant DNA technology (Genetic Engineering) allows genes to be transferred
(1). across different species of plants
(2). from animals to plants
(3). from microorganisms to higher organisms
Select the correct answer using the codes given below.Options
Answer
(D)
-
PhysicsXGeneral
Science and Technology › PhysicsXGeneral
The efforts to detect the existence of Higgs boson particle have become frequent news in the
recent past. What is/are the importance/importances of discovering this particle?
(1). It will enable us to under-stand as to why elementary particles have mass.
(2). It will enable us in the near future to develop the technology of transferring matter from
one point to another without traversing the physical space between them.
(3). It will enable us to create better fuels for nuclear fission.
Select the correct answer using the codes given below.Options
Answer
(A)
-
Science and Technology › PhysicsXGeneral
Ball bearings are used in bicycles, cars, etc., because
Options
Answer
(C)
-
PhysicsXLight energy
Science and Technology › PhysicsXLight energy
Rainbow is produced when sunlight falls on drops of rain. Which of the following physical
phenomena are responsible for this?
(1). Dispersion
(2). Refraction
(3). Internal Reflection
Select the correct answer using the codes given below.Options
Answer
(D)