Which of the following statements is true about gene regulation in prokaryotes?
a. Promoters determine whether a gene is expressed
b. Expressed genes make more DNA
c. DNA binding proteins determine whether a gene is expressed
d. RNA polymerase regulates gene expression
Answer: c. DNA binding proteins determine whether a gene is expressed
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How can we select stars whose planets are likely homes for life?
What will be an ideal response?
The cerebral region that controls emotions and
functions in memory is the a. medulla. b. corpus callosum. c. limbic system. d. cerebral cortex. e. cerebellum.
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a. cnidarians b. flatworms c. sponges d. molluscs e. ctenophores