Based on their effects, which pair below would NOT be expected to be active at the same time and place?
A) prostaglandin and nitric oxide
B) endocrine and exocrine glands
C) hormones and target cells
D) neurosecretory cells and neurotransmitters
A
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Transcriptional regulation in eukaryotic cells requires the coordinated action of many proteins that interact with one another and with DNA sequences near the gene
A. true B. false
If a researcher used Escherichia coli DNA polymerase instead of Thermus aquaticus DNA polymerase in the PCR procedure, what would be the result?
A. DNA replication would occur more slowly than normal. B. DNA replication would not occur at all. C. Many mistakes would occur. D. DNA replication would occur twice as fast as normal. E. DNA replication would stop after one cycle.
Which feature is not a characteristic of the tropical rain forests? a. Average rainfall of 130 - 200 centimeters
b. The most structurally complex biome. c. Photosynthesis continues year round. d. Average temperature of 92o F. e. Little variation in the length of daylight.
The open area or central space in the GI tract is called the ________
Fill in the blank(s) with the appropriate word(s)