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An antibody molecule has how many peptide chains?

AFour
BNine
CFive
DSeven
Answer & Solution
Correct answer: A. Four
1. Two light and two heavy chains. 2. Total four chains, written H2L2. 3. IgA, IgM, IgE and IgG are types. _Source: syllabus Biology, Chapter 8, Human Health and Disease._
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