The figure depicts the germline organization of gene segments of the Ig heavy chain locus on chromosome 14. Choose the lettered label on the figure (A-E) that best matches the description in questions 4-7
Encodes the isotype of antibodies made by naive B cells
ANS: D. Naive B cells produce IgM and IgD antibody isotypes. The IgM isotype is a characteristic of the heavy chain constant region, encoded by the Cμ gene segment.
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A predominance of _____ can lead to a six-fold increase in the risk for CHD
a. intermediate-density lipoprotein b. lipoprotein-a LDL cholesterol c. large LDL cholesterol particles d. small LDL cholesterol particles
Which of the following diagnostic procedures measures intraocular pressure?
A) fluorescein staining B) ophthalmoscopy C) keratometry D) tonometry
The medical term for the form of arthritis that is commonly known as wear-and-tear arthritis is ____________________.
osteoarthritis rheumatoid arthritis
Lumps in the jaw or neck, sores on lips or gums that don't heal as expected, and difficulty speaking or swallowing are signs of
A) gum disease. B) oral cancer. C) laryngitis. D) dental caries.