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Strategies for Enhancement in Food Production Test - 20

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Strategies for Enhancement in Food Production Test - 20
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which organism is used as a major source to obtain the single cell protein?
    Solution
    SCP (single cell protein) is the edible unicellular microorganisms from which protein is extracted and used as supplementary food sources. Different varieties of yeast are commonly used organisms to obtain SCP.
    So, the correct answer is 'yeast'
  • Question 2
    1 / -0
    Cryobiology deals with
    Solution
    Physiology is the scientific study of normal function in living systems. 
    Anatomy is the branch of biology concerned with the study of the structure of organisms and their parts.
    Cryobiology is the branch of biology that studies the effects of low temperatures on living things within Earth's cryosphere or in science. 
    So, the correct answer is 'temperature effect'
  • Question 3
    1 / -0
    Callus is
    Solution

    Solution:
    Correct answer is option A
    Explanation for correct option:

    • Plant callus is a mass of unorganized cells derived from plant tissue for use in biological research and biotechnology.
      In plant biology, callus cells are those cells that cover a plant wound. Callus formation is induced from plant tissues after surface sterilization and plating onto in vitro tissue culture medium.
      Plant growth regulators, such as auxins, cytokinins and gibberellins are supplemented into the medium to initiate callus formation or somatic embryogenesis.
      So, the correct answer is 'under differentiated mass of a tissue'

  • Question 4
    1 / -0
    The reason for the formation of an embryoid from a pollen grain, in a tissue culture medium, is 
    Solution
    Cell potency or cellular totipotency is a cell's ability to differentiate into other cell types. The more cell types a cell can differentiate into, the greater its potency.

  • Question 5
    1 / -0
    Pisciculture does not include:
    Solution
    • The breeding, rearing, and transplantation of fish by artificial means is called pisciculture, in other words, fish farming. 
    • Rohu is a fish while prawns and crabs are invertebrate aquatic animals and are also included in pisciculture.
    • The raising of silkworms for the production of raw silk is called sericulture.

    So, the correct answer is 'Silkworm'
  • Question 6
    1 / -0
    The sugar found in nectar and honey is
    Solution
    Nectar contains sugars like sucrose, glucose and fructose, whereas honey is majorly made of glucose and fructose
    So, the correct answer is ' Fructose'
  • Question 7
    1 / -0
    Which is the oldest breeding method ?
    Solution
    As a part of agriculture, man started rearing plants and animals to meet his requirements. This is when humans started to learn how to influence the process of natural evolution so as to breed plant or animals. Slowly and gradually, this process of expedited evolution, through selection and cultivation of plants, acquired the form of a routine endeavor what we today call plant breeding. In this, heredity, which refers to the passage of various characteristic features from the main plant (the parent) to the plantlets (the progeny), plays an important role. The effects of heredity had been apparent to early man and he had taken advantage of them ever since the advent of agriculture. Various methods have evolved in plant breeding. One of the most important methods is that of selection. After the selection of parents with desired characteristics, they can be hybridized to yield better offsprings with both the parent characteristics. Selection is the oldest method of plant breeding and is the base of all crop improvement programmes
    So, the correct answer is 'selection
  • Question 8
    1 / -0
    Plants can be disease resistant by
    Solution

    Plants can be disease resistant by breeding with a plant which naturally have resistance gene. Generally, wild varieties of plants have resistance gene for disease so breed important crop with their wild varieties to get disease resistant plants.

  • Question 9
    1 / -0
    The indica varieties of rice is crossed with japonica varieties, as these are
    Solution
    • The japonica variety of rice is usually grown in temperate climates. The grains are round and do not easily crack or break. When cooked, this rice is sticky and moist. The rice produced in Japan is mostly japonica. Japonica yield is higher compared to the indica rice. 
    • japonica is disease resistant, because it is a wild variety. 

    So, the correct answer is 'resistant to diseases'
  • Question 10
    1 / -0
    Aim of plant breeding is to produce
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