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Question: Answered & Verified by Expert
In the given diagram of antibody, 'X' indicates ________.

BiologyHuman Health and DiseasesNEET
Options:
  • A Constant region of heavy chain
  • B Antigen-binding site
  • C Disulphide bond
  • D Light chain
Solution:
1401 Upvotes Verified Answer
The correct answer is: Antigen-binding site
X is the antigen-binding site. Antigen combines with the antibody at this site in a lock and key manner.

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