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With reference to street-lighting, how do sodium lamps differ from LED lamps?

With reference to street-lighting, how do sodium lamps differ from LED lamps? 1. Sodium lamps produce light in 360 degrees but it is not so in the case of LED lamps. 2. As street-lights, sodium lamps have longer life span than LED lamps. 3.The spectrum of visible light from sodium lamps is almost monochromatic while […]

The term ‘ACE2” is talked about in the context of

The term ‘ACE2” is talked about in the context of(2021) a) genes introduced in the genetically modified plants b) development of India’s own satellite navigation system c) radio collars for wildlife tracking d) spread of viral diseases Answer: D On the surface of human cells is an enzyme called ACE2, which acts as the receptor […]

Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?

Bisphenol A (BPA), a cause of concern, is a structural/key component in the manufacture of which of the following kinds of plastics?(2021) a) Low-density polyethylene b) Polycarbonate c) Polyethylene terephthalate d) Polyvinyl Chloride Answer: B BPA is a precursor to important plastics, primarily certain polycarbonates and epoxy resins, as well as some polysulfones and certain […]

Bollgard I and Bollgard II technologies are mentioned in the context of

Bollgard I and Bollgard II technologies are mentioned in the context of(2021) a) Clonal propagation of crop plants b) Developing genetically modified crop plants c) Production of plant growth substances d) Production of biofertilizers Answer: B Bollgard I Bt cotton (single-gene technology) is India’s first biotech crop technology approved for commercialization in India in 2002, […]

Which of the above can be cultured in an artificial/ synthetic medium?

Consider the following: 1. Bacteria 2. Fungi 3. Virus Which of the above can be cultured in an artificial/ synthetic medium?(2021) a) 1 and 2 only b) 2 and 3 only c) 1 and 3 only d) 1,2 and 3 Answer: AUnlike bacteria, many of which can be grown on an artificial nutrient medium, viruses […]