You find a strange infection in your mouth and visit your dentist. The dentist said the new organism was prokaryotic because it had ________
A) DNA in the nucleus B) membrane-bound organelles
C) relatively large cells D) circular DNA
Answer: D
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Which of the following accounts for why eukaryotic cells are typically much larger than prokaryotic cells?
A. Since eukaryotic cells have more DNA, their cell volume has to be larger. B. A eukaryotic nucleus is so large that the cell has to be bigger. C. Reproducing sexually requires the cells to be larger. D. Using molecular motors, eukaryotic cells can transport materials throughout their cytoplasm much faster than prokaryotic cells can, which have to rely on simple diffusion. E. None of the answers options is correct..
Which is the normal start codon for protein synthesis?
a. AUG b. UAA c. UAG d. UGA e. GGU
Somatic system fibers in nerves carry information
a. to and from receptors. b. to and from effectors. c. from receptors in skin, tendons, and skeletal muscles. d. to skeletal muscles. e. from receptors in skin, tendons, and skeletal muscle and to skeletal muscles.
All of the following pertain to poliomyelitis, except
A) If virus enters the central nervous system, motor neurons can be infected and destroyed. B) It can be asymptomatic or mild with headache, sore throat, fever, and nausea. C) There are effective vaccines to prevent polio. D) Summer outbreaks in the United States have been recently increasing. E) It is transmitted primarily by fecal contaminated water.