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Strategies for Enhancement in Food Production Test - 69

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Strategies for Enhancement in Food Production Test - 69
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  • Question 1
    1 / -0
    Plant part used for tissue culture is sterilized by ____________.
    Solution
    Tissue culture is the growth of tissues or cells in an artificial medium separate from the organism. Plant parts can be sterilized by using several disinfecting agents i.e., use of chemicals.
    Ex. :- Calcium hypo chloride, sodium hypo chloride, ethyl alcohol, silver nitrate etc.
  • Question 2
    1 / -0
    In a sexual reproduction, two offspring's have the same genetic material and the same body features are called _______.
    Solution
    • In sexual reproduction, two offsprings have the same genetic material and the same body features are called identical twins.
    • They are two offspring produced by the same pregnancy.
    • Twins have the same genetic material and the same body features because they develop from a single fertilized egg, they have the same genome.
    • So, the correct answer is 'Twins'.
  • Question 3
    1 / -0
    Which is used in tissue culture
    Solution
    - Explant is referred to as the cell or tissue which is taken from a particular body and then placed in a culture medium for growth. It is Transfer (living cells, tissues, or organs) from animals or plants to a nutrient medium. In terms of plants, the explant is the small pieces of plant part and issues that are aseptically cut and then they are kept in a nutrient medium.  For the culture, this can be taken from different plant parts which can dedifferentiate into totipotent cells. The explants are placed in the aseptic condition and the nutrient medium.
    - The plants produced from tissue culture are genetically identical to the original plant from which they are grown, so they are called somaclones.
    - SOMATIC HYBRIDIZATION Development of hybrid plants through the fusion of somatic protoplasts of two different plant species/varieties is called somatic hybridization.
    So, the correct option is option A.
  • Question 4
    1 / -0
    Honey is _____________.
    Solution
    Honey is acidic in nature as the pH of honey ranges from 3.4 to 6.1. 

    The average pH of honey is 3.9, and we know that on the pH scale, anything below 7 is acidic, 7 is neutral, and above 7 is basic.

    So the correct answer is acidic.
  • Question 5
    1 / -0
    Germplasm can be collected from many sources, where the preferred source to develop disease resistance is 
  • Question 6
    1 / -0
    Which increase shoot growth in callus culture?
    Solution
    • The callus is an unspecialized, unorganized, growing and dividing the mass of cells.
    • It produced when explants are cultured on the appropriate solid medium, with both auxin and cytokinin in correct conditions.
    • In Callus culture, Auxins increase root growth and cytokinins increase shoot growth.
    • Hence Cytokinin increase shoot growth in callus culture.
    • So, the correct answer is 'Cytokinin'.
  • Question 7
    1 / -0
    Which of the following is not evolved from wild cabbage?
    Solution
    Kale, Broccoli and Kohlrabi is evolved from mustard  through plant breeding techniques, which also includes cabbage, cauliflower and Brussels sprouts.This does not include lettuce.
    So, the correct answer is 'Lettuce'
  • Question 8
    1 / -0
    Which of the following is raised as food for the live-stock?
    Solution
    Oat is grown as livestock in the from of grain, silage, hay and pasture. Oats have adequate soluble carbohydrates to make good silage. the oat grain is a good source of protein, starch ,fats and vitamins. The fat content of oats increases the energy content of animals. Oats prevent allergies and do not irritate the intestine. Oats can be fed in mixture with other grains as a daily diet or ration. While millets, Sorghum and lentils are usually grown for hay or silage often as a short - season emergency hay crop.
    So, the correct answer is 'oats'
  • Question 9
    1 / -0
    Which one of the following fish variety is a surface feeder?
    Solution
    Surface feeders mean an organism usually a fish which takes its food from the air/water interface or feeds just below the water surface. This feeds on zooplanktons, for example: Catla
    Rohu are column feeders which are omnivores.
    Mrigal are bottom feeders (illiophagous), and feed on decaying plant materials, while common carp feeds on algae and certain invertebrate animals that dwell at the bottom of the water body.
    So, the correct answer is 'Catla'
  • Question 10
    1 / -0
    Which of the following mixtures would you be able to separate using the method of filtration?
    Solution
    The correct answer is option (b) Cornflakes in milk. 
    Cornflakes are insoluble in water and milk both. Thus, they can be removed from the milk with filtration.
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