What would be the effect of a genetic defect in a clotting factor that normally is part of the conversion of fibrinogen into fibrin?
A. Platelet-derived growth factor would be lacking, and smooth muscle in the walls of broken blood vessels would not be repaired.
B. A clot that seals the break in a blood vessel would not form.
C. Plasmin would not be produced, and the clot would remain on the wall of the blood vessel without dissolving.
D. Platelets would not adhere to one another to form the platelet plug.
E. Platelets would not be able to release serotonin.
Answer: B
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