The cells infected by the human immunodeficiency virus include:
A. Keratinized skin cells
B. Respiratory epithelial cells
C. B-cells
D. Basal skin cells
E. CD4+ T-cells, monocytes and macrophages
Ans: E. CD4+ T-cells, monocytes and macrophages
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Anti-inflammatory medication would suppress
A. the release of cytokines. B. vasodilation. C. leukocyte movement through the capillary wall. D. the release of nitric oxide from endothelial cells. E. All of these statements are correct.
Which of the following statements accurately describes Gregor Mendel?
A. He conducted many preliminary studies with various animals and plants. B. He kept very detailed records of his research. C. He had a strong background in mathematics. D. He was very deliberate and followed the scientific method closely while doing his research. E. All of the statements accurately describe Gregor Mendel.
What is the nature of the genetic mutation that causes lactose intolerance?
A. It is a dominant mutation that prevents lactase production. B. It is a dominant mutation that causes a decline in adult lactase levels. C. It is a recessive mutation that prevents lactase production. D. It is a recessive mutation that causes a decline in adult lactase levels. E. It is an X-linked mutation that prevents lactase production.
The limbic system influences emotional aspects of behavior
____________________ Indicate whether the statement is true or false.