The widely-distributed CRISPR system has been found in approximately ________ of archaeal sequenced genomes and in ________ of bacterial sequenced genomes
a. 70 percent / 90 percent
b. 90 percent / 70 percent
c. 50 percent / 50 percent
d. 50 percent / 30 percent
Answer: B
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Which of the following items will not help treat or eliminate the symptoms of genetic disorders?
a. Dietary controls b. Hormone replacement therapy c. Exposure to carcinogens d. Prescription drugs e. Surgery
Which is the smallest unit of an element that retains
the properties of the element? a. atom b. compound c. ion d. molecule e. mixture
Which of the following statements about fats is INCORRECT?
A. Fats are a good source of energy. B. Fats contain approximately 2 hydrogens per carbon in the molecule. C. Most fats do not dissolve in water. D. Fats contain nitrogen, carbon, hydrogen, and oxygen atoms.
A ________ is an infection indigenous to animals that can, on occasion, be transmitted to humans.
Fill in the blank(s) with the appropriate word(s).