When you go to your supervisor to give your diagnosis, which of the following hypotheses do you present to support it?
ALD is a fatal disease that results from a lack of peroxisomes in the liver. It is diagnosed by the presence of high levels of very long-chain fatty acids in the blood. The disease results in destruction of brain myelin leading to progressive cognitive impairment, coma, and death by the age of 14. 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.
A. Both her mother and father are recessive carriers of ALD.
B. Most of the Barr bodies in her liver have a normal peroxisome gene.
C. Her mother is a carrier for ALD.
D. She has Turner syndrome.
E. Her mother is a carrier, and she could have genetically normal Barr bodies in the liver or Turner syndrome.
E. Her mother is a carrier, and she could have genetically normal Barr bodies in the liver or Turner syndrome.
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The secondary lymphoid organs consist of the following EXCEPT
A) lymph nodes. B) mucosal-associated lymphoid tissue (MALT). C) spleen. D) All of these organs are secondary lymphoid organs.
Suspension filter feeding animals capture food particles that are:
A. floating in the water around them. B. laying on the surface of the sea floor. C. attached to rocks or other hard surfaces. D. buried within the sediments. E. All of the answer options are correct.
Which of the following is the main component of the plasma membrane?
a. cholesterol b. phospholipids c. proteins d. carbohydrates
Four of the five choices listed below are parts of a
seed. Select the exception. a. ovary b. cotyledon c. embryo d. coat e. endosperm