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Question

Which of the following derivatives is composed of hard keratin?

A
Hair
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B
Hair follicles
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C
Nails
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D
Sweat gland
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Solution

The correct option is C Nails
  • Hard keratin is found in hair and nails; soft keratin is found in the epidermis of the skin in the form of flattened non-nucleated scales that slough continually.
  • Keratinization is the process of transforming epidermal cell material into keratin. Hence, Nails is composed of hard keratin.
  • So, the correct answer is 'Nails'.

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