For which of the following reasons does nucleotide excision occur?
a. to repair thymine dimers
b. to replace proteins
c. to correct a faulty base
d. to form a replication fork
a. to repair thymine dimers
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Blood with substances from the small intestine
goes through the ___ before returning to the heart.
a. liver b. gallbladder c. pancreas d. large intestine e. spleen
In any physical or chemical change, the universe tends toward greater disorder. This is the ________ law of thermodynamics, or the law of thermodynamic ________
Fill in the blank with correct word.
where a person has sex and also the birth canal
What will be an ideal response?
An example of an "emerging virus" (a virus in a new host) with a lethality rate in excess of 50% is
A. influenza virus. B. Ebola virus. C. hepatitis B. D. variola virus. E. yellow fever.