Which of the following are found exclusively in the nucleus of a cell?
a. DNA
b. mRNA
c. proteins
d. tRNA
A
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An activator is present and results in the increase in transcription of the target gene. This is an example of _______________
A. termination B. positive control C. negative control D. feedback inhibition
The active site of DNA polymerase is similar in ____
a. archaea and bacteria only b. archaea, bacteria, and eukaryotes c. archaea and eukaryotes only d. none of these groups e. bacteria and eukaryotes only
The first plant to colonize the plains of Mount Saint Helens after this volcano erupted in 1980 was a prairie lupine
The prairie lupine is therefore an example of ____.
a. a secondary successor b. a pioneer species c. a keystone species d. an exotic species e. an introduced species
A drop to pH 4.0 in the duodenum would primarily stimulate the release of ________.
A. gastrin B. insulin C. secretin D. pepsin E. cholecystokinin