Roitt's Essential Immunology

Thirteenth Edition

Peter J. Delves, Seamus J. Martin, Dennis R. Burton, Ivan M. Roitt

Multiple Choice Questions

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Chapter 10, Question 1.

1. Which of the following is the earliest site of hematopoiesis in the embryo?

A Bone marrow

B Liver

C Spleen

D Yolk sac

E Thymus