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Biotechnology Engineering

Environmental Biotechnology MCQs

Practice Environmental Biotechnology MCQs for competitive exams.

Environmental Biotechnology MCQs

Practice questions from this topic.

The fertility of oceans is used to express the capacity for the production of organic matter by

  1. A. The organism in these water
  2. B. Presence of nitrogenase
  3. C. Presence of Rhizobium
  4. D. Both B and C
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In nutrient cycles in general, minerals tend to be dispersed throughl . . . . . . . .

  1. A. Plant action
  2. B. Surface and subsurface runoff
  3. C. Evaporation
  4. D. Assimilation
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Disease caused by eating fish found in water contaminated with industrial wastes havingmercury is

  1. A. Minimata disease
  2. B. Bright disease
  3. C. Hashimotos disease
  4. D. Osterosclerosis
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Solar ponds are used for

  1. A. Salt production
  2. B. Aquaculture
  3. C. Power generation
  4. D. All of the above
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Lignin's diminished biologically degraded under anoxic conditions results in

  1. A. Accumulation of carbohydrates molecules
  2. B. Accumulation of lignified molecules including the formation of peat bogs and muck soi Is
  3. C. Accumulation of starch molecules including the formation of peat bogs and muck soils
  4. D. Accumulation of lipid molecules
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Genes for biodegradation of xenobiotics by Pseudomonas are located on

  1. A. Plasmids
  2. B. Genome
  3. C. Trascriptome
  4. D. Proteome
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The orchid seeds do not germinate under ordinary conditions because

  1. A. Orchid seeds are too large for disposal
  2. B. Orchid seeds do not have endosperm
  3. C. Orchid seeds undergo a dormancy period
  4. D. They germinate under very dry conditions
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Which one of the following is a valid assumption regarding the molecular clock hypothesis in evolution?

  1. A. For a given protein sequence, mutations accumulate at a constant rate in all lineages
  2. B. For a given protein sequence, mutation rates are different in different lineages
  3. C. All proteins evolve at the same constant rate
  4. D. For a given linage, mutation rates are the same for all proteins
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A synthetic chemical compound that is not naturally available in nature is

  1. A. Probiotics
  2. B. Xenobiotic
  3. C. Epibiotic
  4. D. Antibiotic
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A small reduction in ozone concentration can lead to a large increase in the amount of harmful ultraviolet radiations reaching the earth in the wavelength region of

  1. A. 200 - 205 nm
  2. B. 220 - 225 nm
  3. C. 260 - 265 nm
  4. D. 295 - 300 nm
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At the present time volcanoes are confined to certain limited areas of the Earth's surface. This special zone is called

  1. A. Trans - Atlantic volcanic zone
  2. B. Circum - Pacific Ring of fire
  3. C. Central - Pacific Inter - Continental zone
  4. D. Indian - Ocean volcanic belt
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General circulation model (GCM's) are used to

  1. A. Predict climate
  2. B. Predict cyclones
  3. C. Study ocean currents
  4. D. Study temperature on wind
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