Four of the five conditions listed below are caused
by recessive genes. Select the exception.
a. Huntington disease
b. phenylketonuria
c. color blindness
d. hemophilia
e. albinism
Answer: a
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How many natural elements exist on Earth?
a. 100 b. 112 c. 88 d. 96 e. 110
The force of the original vibrations entering the ear is amplified by the
a. organ of Corti. b. oval window. c. round window. d. Eustachian tube. e. semicircular canals.
-ray crystallography revealed several important features of the shape of DNA. Which one of the
following facts about DNA was NOT revealed by X-ray crystallography? A. The shape of the molecule is helical. B. The amount of purine bases equals the amount of pyrimidine bases. C. The molecule has a constant diameter. D. The phosphate groups are located on the outside. E. All of these were revealed by X-ray crystallography.
Provides clues to identify a new disease or adverse health effect, identifies the extent of the public health problem and obtains a description of the public health problem that can be easily communicated
a. analytical epidemiology b. descriptive epidemiology