Author Question: During a primary humoral response to antigens all of the following occur except A) B cells may ... (Read 23 times)

bobbysung · **on:** Feb 28, 2019

During a primary humoral response to antigens all of the following occur except
A) B cells may differentiate into plasma cells immediately.
B) B cells may undergo several rounds of mitosis before producing plasma cells and memory cells.
C) antibody levels do not peak until 1 to 2 weeks after the initial exposure.
D) neutrophils invade the surrounding areas, releasing chemotactic substances.
E) the first immunoglobulins to appear in circulation are of the IgM type.

Question 2

A brain injury to a patient results in facial paralysis. Which descending tract is most likely affected?
A) corticospinal tract
B) tectospinal tract
C) rubrospinal tract
D) corticobulbar tract
E) reticulospinal tract