Which one of the following cell organelles is enclosed by a single membrane?
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The two polypeptides of human insulin are linked together by:
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In which of the following, all three are macronutrients?
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Which of the following statements is wrong for viroids?
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Analogous structures are a result of:
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Select the incorrect statement:
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Which one of the following characteristics is not shared by birds and mammals?
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Which of the following statements is not correct?
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Seed formation without fertilization in flowering plants involves the process of:
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Which of the following approaches does not give the defined action of contraceptive?
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