Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What will be an ideal response?
This question asked you to apply your knowledge about specifically inhibiting one class of
receptors. If you got the correct answer, great job! If you got an incorrect answer, where did the process
break down? Did you think that blocking movement of ions would be specific to one receptor? Did you
think that ion transport would use second messenger signaling?
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A large number of the genes shared by bacteria and Archaea produce proteins that are involved in ________.
Fill in the blank(s) with the appropriate word(s).
The reduction of pollutants in the environment by microorganisms is called biodegradation
Indicate whether the statement is true or false
Adrenoleukodystrophy (ALD) is a fatal disease that results from the inability of liver cells to transport very long chain fatty acids (VLCFAs) across the peroxisomal membrane. It is diagnosed by the presence of high levels of VLFCAs in the blood. The disease results in destruction of brain myelin leading to progressive cognitive impairment, coma, and death by the age of 14. ALD is an X-linked recessive condition, and there has never been a case of ALD described in girls. You have just started your internship at the Mayo clinic and a 10-year-old girl comes in who is in a coma and having seizures. Blood tests show she has extremely elevated levels of long-chain fatty acids. This looks like ALD, but a girl has never been afflicted. When you go to your supervisor to give your diagnosis, which
of the following hypotheses do you present to support it? A. The patient's mother and father are both recessive carriers of ALD. B. Most of the Barr bodies in the patient's liver have a normal peroxisome gene. C. The patient's mother is a carrier for ALD. D. The patient has Turner syndrome. E. The patient's mother is a carrier, and the young girl has either only genetically normal Barr bodies in the liver or the girl has Turner syndrome.
Which of the following would not be a "control" in an experimental procedure?
A. a normal group B. an experimental group C. a known standard of comparison D. a placebo group E. a "zero-value" group