The bacterial chromosome
A. contains all the cell's plasmids.
B. forms a single linear strand of DNA.
C. is part of the nucleoid.
D. is located in the cell membrane.
E. All of these choices are correct.
Answer: C
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Which muscles may contract during inspiration?
(a) external intercostals. (b) internal intercostals. (c) abdominal. (d) both b and c.
Interleukins are
A. produced by leukocytes. B. important in both innate and adaptive immunity. C. involved in directly killing tumor cells. D. protein molecules. E. produced by leukocytes AND protein molecules.
How does the spiral valve within the shark intestine increase the efficiency of food digestion?
What will be an ideal response?
Oversecretion of growth hormone in adulthood results in
a. pituitary gigantism. b. acromegaly. c. pituitary dwarfism. d. diabetes insipidus. e. cretinism.