Which of the following organisms is a prokaryote?
A) seaweed
B) a slime mold
C) an amoeba
D) a bacterium
Answer: D) a bacterium
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The pairwise map distances for four linked genes are as follows: A-B = 22 m.u., B-C = 7 m.u., C-D = 9 m.u., B-D = 2 m.u., A-D = 20 m.u., A-C = 29 m.u. What is the order of these four genes?
A) ABCD B) ADBC C) ABDC D) BADC E) CADB
The scorpion sting is described as one of the most painful stings. The pain is associated with the neurotoxins from the sting that cause the sodium channels to
A. remain open. B. remain closed. C. open and close repeatedly. D. misfire. E. None of the answer choices is correct.
Which blood vessel is next to living cells in nearly all body tissues?
a. venules b. arterioles c. capillaries d. veins e. arteries
Compare and contrast type I hypersensitivity with type IV hypersensitivity with respect to reaction time, mediators, and cells involved
What will be an ideal response?