A patient is exhibiting symptoms that include lethargy, weight gain, and abnormal blood levels of calcium. Where does the patient potentially have a tumor?
A) pancreas
B) thyroid gland
C) thymus
D) hypothalamus
B
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A certain gene is transformed into a plant cell for potential use as a vaccine delivery system. Upon performing a Northern blot, a good deal of mRNA for the gene is produced. However, the protein product for the gene is not observed. One explanation may be that the
A) plant cell recognizes and degrades the protein in the cytoplasm. B) plant ribosomes are not recognizing the mRNA translational initiation sites. C) mRNA is not stable in the plant cytoplasm. D) all of the above E) none of the above
Cleft palate is ____
a. controlled only by genetics b. a continuously distributed trait c. controlled by a single gene pair d. only transmitted from father to son e. explained by the threshold model of complex traits
Release of cross-bridges depends most directly on
A. calcium ions. B. potassium ions. C. adenosine diphosphate. D. adenosine triphosphate. E. creatine phosphate.
____ is the study of body plans and structures
a. Evolution b. Biogeography c. Comparative morphology d. Comparative physiology e. Natural history