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Antibody Diversity

View the animation below, then complete the quiz to test your knowledge of the concept.






1Light chains are made of
A)one V and one J segment in the variable region plus a constant region that is common in all light chains
B)one V, one D, and one J segment in the variable region plus a constant region that is common in all light chains
C)one V and one J segment in the variable region plus one of two possible different constant region segments
D)one V and one J in the variable region and no constant region



2Heavy chains
A)all have the same constant region
B)have one of two possible constant regions
C)have one of five possible constant regions
D)have one of eight possible constant regions



3The V, J, and D segments
A)must be a matching set
B)are each selected randomly
C)are present in the constant region of the heavy chain
D)are RNA sequences



4Human cells have separate genes for each antibody molecule.
A)True
B)False



5The m gene codes for the constant region of the light chain in IgM antibody.
A)True
B)False







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