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Immunology › View

The basic antibody unit is composed of

A. 2 identical heavy chains and 2 different light chains

B. 2 identical heavy chains and 2 identical light chains

C. 2 different heavy chains and 2 identical light chains

D. 2 different heavy chains and 2 different light chains

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Diseases of The Digestive System › View

Intolerance is caused by…

A. an infection

B. a bite of a mosquito

C. Deficiency of enzymes that metabolize carbohydrates

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