A certain infectious disease can cause swellings on the aortic semilunar valve. The valve will then fail to close properly, resulting in ________
A) varicose veins B) backflow C) aneurysm D) atherosclerosis
Answer: B
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A physician discovered a cancerous tumor in the cartilage of a patient. What type of tumor is this?
A. myeloma B. retroviral C. sarcoma D. leukemia E. cyst
If the enzyme catalyzing the N to O reaction is allosterically stimulated, there will be a build-up of
which compound(s)?
a. N b. O c. P d. Q e. P and Q
What makes coralline algae unique? a. Their pink color
b. They deposit calcium carbonate in their cell walls. c. An unusual symbiotic relationships with worms. d. They live in the supralittoral fringe.
Four of the five answers listed below are related by a common phase of mitosis. Select the exception
a. chromosomes decondense b. spindle microtubules disappear c. nucleolus reappears d. chromosomes separate e. nuclear envelope reforms