Biology miscellaneous


  1. Production of alcohol from organic compounds by microorganisms is known as









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    The process of breaking down large molecules into simpler one in the presence of enzyme is called fermentation.

    Correct Option: B

    The process of breaking down large molecules into simpler one in the presence of enzyme is called fermentation.


  1. A seed can germinate in the absence of









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    A seed can germinate in the absence of adequate light.

    Correct Option: A

    A seed can germinate in the absence of adequate light.



  1. The sugar present in DNA is









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    The sugar present in DNA is 2-deoxyribose, which is a pentose.

    Correct Option: A

    The sugar present in DNA is 2-deoxyribose, which is a pentose.


  1. ‘Comose’ seeds are seeds with









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    The word ‘comose’ means ‘hairy’ in Latin. It refers to certain seeds (such as cotton) having a tuft or tufts of hair. The seeds of plants like Calotropis, Gossypium, etc, possess a large number of hairs which enable them to float in air. Such seeds are described as comose.

    Correct Option: A

    The word ‘comose’ means ‘hairy’ in Latin. It refers to certain seeds (such as cotton) having a tuft or tufts of hair. The seeds of plants like Calotropis, Gossypium, etc, possess a large number of hairs which enable them to float in air. Such seeds are described as comose.



  1. Haemoglobin contains the metal









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    Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.

    Correct Option: C

    Haemoglobin is an iron-containing protein in red blood cells. It contains a haem prosthetic group that has an iron atom at its centre. When the iron is bound to oxygen, the haem group is red in colour (oxyhameoglobin), and when it lacks oxygen (deoxygenated form) it is blue-red.