Second-site mutations that compensate for the effects of another mutation are known as
a. frameshift mutations.
b. suppressor mutations.
c. transitions.
d. transversions.
Answer: B
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An organism can take advantage of energy available from both light and from organic molecules and exhibit both phototrophy and chemoorganotrophy.
Answer the following statement true (T) or false (F)
The development of the nervous system requires the migration and lengthening of neuronal cells. These events are
driven by ____.
a. pseudopods b. motor proteins c. flagella d. intermediate filaments e. microfilaments
Core body temperature is about ____
a. 37°C b. 98.6°C c. 37°F d. 75°F e. 41°C
Two tRNA molecules occupy the P and A sites in a ribosome. The amino acids they carry are joined
by a peptide bond. What is the very next event that occurs? A. The tRNA in the P site detaches and leaves the ribosome. B. A third tRNA enters the ribosome. C. The ribosome moves one codon down the mRNA. D. The large subunit leaves the ribosome. E. A new amino acid is joined to the tRNA in the P site.