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Aarna Agarwal from Manav Rachna International School, Gurgaon
Subject :IGK    Class : Class 5

The nails are made of a protein called ________.

AKeratin
BMelanin
CCarotenoid
DLuciferin


Ans 1:

Aarna Agarwal from Manav Rachna International School, Gurgaon
Class : Class 5
The correct answer is A

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