Name the substance that forms the exoskeleton of insects and praw
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    Biomolecules

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    101. Name the substance that forms the exoskeleton of insects and prawns.

    Chitin.
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    Multiple Choice QuestionsShort Answer Type

    102. What is meant by tertiary structure of proteins ?
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    103. What are quarternary proteins ?
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    104. All proteins are made up of same amino acids, explain how human protein may be different from those of a dog.
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    105. How are complementary base pairs joined in a DNA double helix ?
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    Multiple Choice QuestionsLong Answer Type

    106. Differentiate between A, B, C, D and Z-DNAs in tabulated form.
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    107. Describe the types of proteins on the basis of composition.
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    108. Describe the functions of proteins.
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    109. Describe Watson and Crick model of DNA.
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    Multiple Choice QuestionsShort Answer Type

    110. What is RNA ? Describe its different forms.
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