ramjand7133 ramjand7133

15-05-2023
Biology

contestada

IgM is particularly efficient at fixing complement because it _____.
A.is a much larger antibody than the other isotypes
B.has an extra CH domain
C.is made first in an immune response and therefore has first access to C1q
D.has five binding sites for C1q
E.has easy access to extravascular areas

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