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Biology Test 81
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Biology Test 81
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  • Question 1/10
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    Which among the following does not fall in the category of morbid fear or Phobia?

    Solutions

    Photophobia is not a fear. It is excessive sensitivity to light and the aversion to sunlight or well-lit places,

    Claustrophobia is fear of confined places,

    Algophobia is fear of pain,

    Anthophobia is fear of flowers,

     

  • Question 2/10
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    In which of the following, the cellular power plants – Mitochondria are absent ?

    Solutions

    The mitochondria are common in Eukaryotic cells. Bacteria is Prokaryotic

     

  • Question 3/10
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    Which among the following is the smallest Human Chromosome?

    Solutions

    Made up of 47 million nucleotides, Chromosome 21 is the smallest Human Chromosome.

     

  • Question 4/10
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    What is RuBisCO?

    Solutions

    Ribulose-1,5-bisphosphate carboxylase oxygenase first enzyme of Calvin Cycle of Carbon Fixation

     

  • Question 5/10
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    Which among the following is a correct definition of Hematocrit?

    Solutions

    Hematocrit levels are used in doping tests of Athletes , (the RBCs are carriers of Oxygen). hematocrit levels also denotes the blood iron. hematocrit levels of 38 or higher are normally suitable for the donors to donate their blood. Here please note that sometimes its is asked in exams about the ion which can help better in blood coagulation and normally options given are Ca, Na, K & Fe+3. The obvious answer is Fe+3.

     

  • Question 6/10
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    Which among the following is true attribute to Polar bear?

    Solutions

    Please note that Polar Bear is the largest land carnivore animal, weighing about 350 to 700 kgs.

    Kodiak bear which is also of same size is a Omnivore

     

  • Question 7/10
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    With which of the following animals Galton’s whistle is most commonly associated?

    Solutions

    Human can listen only the frequencies below 20 kHz. However animals like dogs, cats, dolphins, bats, and mice can listen above this limit. This principle was used by Galton who produced the ultrasonic waves by blowing a whistle. For human these whistle appears silent, while dogs and cats can listen it. It is used in training of dogs and cats

     

  • Question 8/10
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    world’s first cloned Buffalo was born in which country?

    Solutions

    The First cloned buffalo was born in February 2009 at National Dairy Research Institute karnal

     

  • Question 9/10
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    Apart from sugarcane (most commonly Saccharum officinarum) which among the following plants is widely known in the world as a commercial source of table sugar ?

    Solutions

    Beta vulgaris is beet or sugarbeet or Chukandar and has been widely used as a commercial crop for table sugar. Glorisoa superba is Glory Lily which is an ornamental plant. Asparagus pulmosus is also an ornamental plant. Brassica alba is common mustard. Toona cilata is a timber plant from which Indian Redwood is obtained.

     

  • Question 10/10
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    From which part of the plant Glycyrrhiza glabra , Liquorice or Mulethi is obtained?

    Solutions

    Mulethi is powdered liquorice root and is an effective expectorant used since ancient times in Ayurvedic medicines. Its is also used in Jastimadhu which is a tooth powder. many cough syrups today contain Liquorice as an ingredient. It is also used in mouth ulcers and peptic ulcers.

     

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