When compared to a primary response, the antibody levels in a secondary response
A. rise more gradually and with a smaller proportion of IgG antibodies.
B. rise more gradually and with a greater proportion of IgG antibodies.
C. rise more rapidly and with a smaller proportion of IgG antibodies.
D. rise more rapidly and with a greater proportion of IgG antibodies.
Answer: D
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A decrease in which population of lymphocytes would impair all aspects of an immune response?
A) cytotoxic T cells B) plasma cells C) B lymphocytes D) suppressor T cells E) helper T cells
When proprioceptors are stimulated, what kind of information is provided to the CNS?
A) pressure B) position of structures C) pH of body fluids D) vibration E) None of the answers are correct.
What is the specific role of the enzyme indicated by B during the formation of the new DNA strands?
A)joining the nucleotides that form the new DNA strand B)transferring nucleotides from the old DNA strand to the new DNA strand C)joining the fragments of DNA that are formed during lagging-strand synthesis D)producing an RNA primer that will be extended into the new DNA strand
A patient goes to her doctor, complaining of fatigue, weight gain, and intolerance to cold. She also has a noticeable goiter in her neck. Which of the following is a most likely diagnosis and cause?
A. She has hypothyroidism, possibly due to destruction of thyrotrope cells of her anterior pituitary gland. B. She has hyperthyroidism, possibly due to Graves' disease. C. She has hypothyroidism, possibly due to low iodine in her diet. D. She has hyperthyroidism, possibly due to a hypersecreting tumor of the anterior pituitary gland.