What subunits make up the DNA polymer?
a. ribose combined with one of the four bases A, T, G, or C
b. deoxyribose combined with one of the four bases A, T, G, or C
c. amine groups combined with sugar-phosphate groups
d. amine groups combined with one of the four bases A, T, G, or C
b
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The term polymorphism refers to the phenomenon that a trait displays variation within a population. Which of the following is an example of polymorphic trait in a population?
A. The A, B, O blood types found in humans. B. The loss of hair in elderly animals that are malnourished. C. The pink or white flowers of the four o'clock flower, both pink and white individuals are prevalent. D. Both the A,B,O blood types in humans and the pink and white flowers of the four o'clocks. E. Both the A,B,O blood types in humans and the loss of hair in elderly animals that are malnourished.
DNA vaccines ____
a. use RNA to assist in the transformation process b. have been created but are ineffective c. show promise in animal studies and are now in clinical trials d. have been approved by the government to fight several diseases e. sometimes infect the subject with the disease it’s attempting to fight
Which of the following is a consequence of histamine release?
A) Decreased blood flow B) Constriction of the smooth muscle that surrounds arterioles C) Initiation of blood clotting D) Leaky capillary walls
Most osmophiles are prokaryotes.
A) True B) False