Which of the following statements is false?
a. All the cells of any one single individual human have the same genes.
b. Only red blood cells have hemoglobin genes.
c. Different genes are activated depending on the cell they are in.
d. Genetically, liver cells and brain cells differ mostly in function.
e. Introns may be a sort of genetic gibberish.
B
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Which of the following cells is associated with the humoral immune response?
a. T cells b. B cells c. phagocytic cells d. natural killer cells
The normal vital capacity for a male is
a. 1000 milliliters. b. 2000 milliliters. c. 4800 milliliters. d. 3800 milliliters. e. 5200 milliliters
In order to be detected by a T cell, the class I major histocompatibility (MHC) molecule of infected cells must go through the process of
A) antigen presentation. B) complement activation. C) phagocytosis. D) antibody binding. E) perforin incorporation.
Infection with Helicobacter pylori can cause ________
A) gallstones B) constipation C) tooth decay D) peptic ulcers