Jawless fish lack immunoglobulins and use __________________ to recognize non-self macromolecules

A) Variable antigen receptors
B) Variable lymphocyte receptors
C) C region receptors
D) Recombination signal receptors

Fill in the blank with the correct answer.


Answer: B

Anatomy & Physiology

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Which vessel in the diagram is the interlobular artery?

a) D b) E c) F d) L

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Which tunic of the GI tract is vascular and has many nerves and glands?

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