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Keratin is a protein having larger a...

Keratin is a protein having larger amount of

A

hair

B

wool

C

silk

D

all of these

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Keratin**: Keratin is a type of protein that is classified as a structural protein. It plays a crucial role in providing strength and resilience to various body parts. 2. **Sources of Keratin**: Keratin is primarily found in the outer layers of the body. It is a key component in several biological structures, including: - Hair - Skin - Nails - Wool - Silk 3. **Composition of Keratin**: Keratin is rich in sulfur-containing amino acids, particularly cysteine. This high sulfur content contributes to the strength and durability of keratinous structures. 4. **Conclusion**: Therefore, keratin is a protein that has a large amount of sulfur due to its high cysteine content, and it is predominantly found in hair, skin, nails, wool, and silk.
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