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Biology MCQs with Answers


This is Biology MCQs section with detailed explanations for preparation of screening tests, interviews for government jobs. In this section candidate will learn MCQs on variety of topics from the subject.

  1. 61 The chief type of spoilage in sweetened condensed milk may be
  2. 62 Fishiness in butter is caused by
  3. 63 Bacterial ropiness in milk is caused by
  4. 64 An alkaline reaction in milk is caused by the alkali formers bacteria as
    1. Pseudomonas fluorescens

    2. A. viscolactis

    3. both (a) and (b)

    4. none of these

    See Answer

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  5. 65 A yellow color in the creamy layer of milk may be caused by
    1. Pseudomonas synxantha

    2. Pseudomonas syncyanea

    3. both (a) and (b)

    4. S. marcescens

    See Answer

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  6. 66 Acidophilus milk which is used for its therapeutic properties in intestinal disorders requires for its manufacture a pure culture of
  7. 67 Esters like flavors in butter are resulted from the action of
  8. 68 Pseudomonas nigrifaciens in mildly salted butter may cause
    1. black smudge

    2. greenish areas

    3. pink color

    4. none of these

    See Answer

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  9. 69 Pseudomonas syncyanea produces a
  10. 70 Cheese with too low an acidity because of the addition of cream or the failure of the starter often is made gelatinous or slimy by
    1. Pseudomonas

    2. P. fragi

    3. Alcaligenes metalcaligenes

    4. all of these

    See Answer

    Added By: Admin