During the stringent response, ppGpp-regulated genes for amino acid biosynthesis have a(n) ________-rich promoter, thus forming a ________ open initiation complex.
A. GC-rich; more stable
B. AT-rich; less stable
C. GC-rich; less stable
D. AT-rich; more stable
Answer: D
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Bacteriophages can be used as vectors in recombinant DNA experiments because they
A) are small and made of double-stranded DNA. B) are circular and easily imported into bacteria or yeast. C) insert their genetic material into bacteria. D) are resistant to protective restriction systems.
Fever develops when ____ stimulate the brain to release prostaglandins
a. cytokines b. histamines c. interferons d. complement e. histamines
Discuss coevolution as it relates to predator-prey interactions. Include a brief discussion of two
specific examples. What will be an ideal response?
What is hydrolysis?
What will be an ideal response?