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Strategies for Enhancement in Food Production Test - 52

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Strategies for Enhancement in Food Production Test - 52
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which of the following statement is correct?
    Solution
    Queen bee is the only fertile female whose primary function is the reproduction. She produces both fertilized and unfertilized eggs. Fertilized eggs will hatch into female worker bees, while unfertilized eggs will become drones or honey bee males. Hence no gamete formation is involved in the formation of male honey bees. Thus the correct answer is option B.

  • Question 2
    1 / -0
    The smallest viable unit which can grow, multiply and form a plant in tissue culture is
    Solution
    The smallest viable unit which can grow, multiply and form a plant in tissue culture is the cell. A cell is a viable unit of the plant which is cultured in the tissue culture. When a cell is cultured, under the controlled condition on a nutrient culture medium of known composition by the technique of tissue culture, the genetic material of the cell starts dividing and increases the cell number by the formation of callus. The callus utilizes the auxin and cytokinin to form root and shoot respectively by the process of cell differentiation and specialization. 
    So, the correct answer is option C.
  • Question 3
    1 / -0
    Tissue culture technique was first performed successfully by
    Solution
    Tissue culture is a biological technique which involves the development of plant under the controlled condition on a nutrient culture medium of the known composition.
    White was the first one to successfully attempt the technique of tissue culture. He cultured tomato roots in a nutrient media composed of vitamins. He developed the continuously growing callus from the root which had the property of totipotency.
    So, the correct answer is option C.
  • Question 4
    1 / -0
    Which of the following animal is not useful to man directly?
  • Question 5
    1 / -0
    What do we mean by single cell protein?
    Solution
    Single-cell protein is a protein obtained from pure or mixed cultures of algae, bacteria, etc. that have 30-70% of protein content in their dry mass. Methylophilyus methylotrophus is a bacterial species that produce single-cell protein. This microbe is rich in amino acids. It is used as a food supplement by humans as well as animals.
    Thus the correct answer is option B.
  • Question 6
    1 / -0
    Tissue culture technique was first attempted by
    Solution
    Tissue culture is a biological technique which involves the development of plant under the controlled condition on a nutrient culture medium of the known composition. The pant developed by the tissue culture are cloned by the process of micropropagation. Gottlieb Haberlandt was the first to attempt tissue culture. He was the first to point out the possibilities of the culture of isolated tissues. He is known as the father of tissue culture.
    So, the correct answer is option A.
  • Question 7
    1 / -0
    Pollen tablets available is market are for
    Solution
    Bee pollen is a source of nutrition. It is a good source of vitamins, minerals, proteins, and carbohydrates. They also contain antioxidants which make them incredibly nutritious. Many studies have linked bee pollen and its compounds to health benefits such as decreased inflammation, as well as improved immunity, menopausal symptoms and wound healing.
    So, the correct answer is 'Supplementary food'
  • Question 8
    1 / -0
    Who developed the technique of nurse tissue to show cellular totipotency
    Solution
    Totipotency is the genetic potential of a plant cell to produce an entire plant. A single cell can produce all cell types and organises them into an entire organism.
    The basis of tissue culture is to grow a large number of cells in a sterile controlled environment. The plant cells are allowed to grow in culture medium containing mineral nutrient, vitamins and hormones to encourage cell division and growth. As a result cells in culture will produce an unorganised proliferative mass of cells which is known as callus tissue.
    Plant cells can be cultured from isolated single plant cell on the top of the actively growing callus ( nurse tissue ) separated by a piece of filter paper. The filter paper serves to prevent tissue union but allows the flow of essential nutrients from the nurse to the isolated cells. The technique has been developed by Muir e.t. al in 1954. The single cell is isolated from, suspension cultures or friable callus with the help of a micropipette, or from the intact plant tissue  ( root, stem, leaf etc. )
    Single cell culture is important for cell cloning, crop improvement programmes, the study of biotransformation etc.
    Thus, the correct answer is option C.
  • Question 9
    1 / -0
    Plant medium used widely in preparation of culture medium is got from
    Solution
    1. Plant medium used widely in preparation of culture medium is obtained from the Cocos nucifera. 
    2. It provides the growth hormone known as cytokinin. The first natural cytokinin known as zeatin was obtained from the coconut plant.
    3. Cytokinins are the group of plant hormones which promotes cell division and differentiation in root and stem of the plant. It is involved in inducing morphogenesis. 
    4. Auxin and cytokinin are used in equal quantity in the growth media of callus.
    5. It promotes shoot and root formation and finally leads to organogenesis. 

    So, the correct answer is option B.
  • Question 10
    1 / -0
    F.C. Steward is associated with
    Solution
    F.C. Steward is associated with tissue culture and played an important role in developing the techniques. Caplin and Steward were the first one to use coconut water as a plant growth regulator in the nutrient media. Later on, it was considered as a substitute for cytokinin. He was also involved in the somatic embryogenesis in carrot cell suspension cultures and production of complete plants. He also laid the foundation of micropropagation technique.
    So, the correct answer is option C. 
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