Which of the following is not involved in the regulation of gastric activity?
A) submucosal neural plexus
B) myenteric plexus
C) vagus nerve
D) CNS
E) hypoglossal nerve
E
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If we follow the ureter into the kidney, what is the first structure we find?
A. A collecting duct B. The renal pelvis C. A renal pyramid D. A major calyx E. A minor calyx
The hypothalamic hormone that regulates both male and female reproductive cycles is ________.
A. FSH B. oxytocin C. LH D. GnRH E. ICSH
What structure ultimately regulates the passage of materials from the blood into the cerebrospinal fluid and the brain?
A. dura mater B. pia mater C. cranium D. arachnoid mater E. meninges F. blood brain barrier
Bovine insulin is composed of 30 amino acids. What is the minimum number of DNA triplets in the insulin gene, based on the amino acid length? What is the minimum number of DNA bases in the coding region? Explain how and why the actual number of triplets in the gene may differ.
What will be an ideal response?