Dopamine derived from the hypothalamus is the prominent hormone controlling pituitary prolactin secretion. Dopamine inhibits prolactin secretion. What do you predict would happen if the pituitary were removed from the base of the brain and transplanted to some distant place in the body (for instance on top of the kidney), such that dopamine could no longer regulate prolactin secretion? You can
assume that the transplanted pituitary will be exposed to a ready supply of blood vessels.
A. Dopamine secretion would increase.
B. Dopamine secretion would decrease.
C. Prolactin secretion would decrease.
D. Prolactin secretion would increase.
E. Both dopamine and prolactin secretion would decrease.
D. Prolactin secretion would increase.
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Because of its antiparallel nature, DNA is often referred to as a ________.
Fill in the blank(s) with the appropriate word(s).
What are the important parts of the microscope?
What will be an ideal response?
Answer the following questions true (T) or false (F)
1. A population that grows by an unvarying number of new units added to the population per unit of time is undergoing exponential growth. 2. Arithmetic growth will produce a faster population increase over time than an exponential growth curve. 3. The carrying capacity of an environment can cause a population initially growing very quickly to level off, resulting in an S-shaped curve.
Why did Garrod define alkaptonuria as a recessive genetic disease?
A) It is expressed in male members of an affected family. B) It is expressed in all members of an affected family. C) It is expressed under certain environmental conditions. D) It is expressed when two alleles for the disease are present. E) It is expressed when one of the two alleles carries the disease trait.