Which of these cannot cause a mutation?
A) A chemical
B) A mistake made by the RNA polymerase
C) A mistake made by the DNA polymerase
D) A virus
E) Radiation
B
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Chemoreceptors are located in all of the following except
A) carotid bodies. B) aortic bodies. C) the skin. D) the organs of taste. E) the organs of smell.
This figure shows an anterior view of a human in the anatomic position. Which number indicates the inguinal region?
A. 1?B. 2?C. 3?D. 4?E. 5
A cell that produces many proteins for secretion would have large numbers of
A. mitochondria and cilia. B. rough ER and Golgi apparatus. C. ribosomes and centrioles. D. Golgi apparatus and microvilli. E. lysosomes and Golgi apparatus.
The figure illustrates a detailed drawing of the neuromuscular junction. What does "A" represent?
A. Synaptic cleft B. Sarcolemma C. Presynaptic terminal D. Synaptic vesicles E. Postsynaptic membrane