Which disorder is associated with buildup of amyloid proteins leading to loss of memory and intellectual functions?
a. epilepsy
b. Parkinson’s disease
c. Alzheimer’s disease
d. meningitis
e. multiple sclerosis
ANSWER: c
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Explain how mass spectrometry (MS) has aided in the progression of the field of metabolomics
What will be an ideal response?
With regards to operons, which of the following is incorrect?
A. operons have a promoter that contains an operator B. are typically controlled by a regulatory gene that is located far from the actual operon C. results in several different RNA molecules each leading to the protein specified by each gene segment in the operon D. may be turned on or off E. may be repressible or inducible
The partly decayed organic portion of soil is called:a
silt. b. clay. c. sand. d. humus. e. castings
An elderly woman is experiencing fever, chest pain, difficulty breathing, and a cough that occasionally brings up mucus containing blood. She reports having visited family in rural New Mexico over the Labor Day weekend. A GMS-stained sample from her lungs shows the presence of large spherules. Which of the following is the most likely infecting agent?
A. Coccidioides immitis B. Blastomyces dermatitidis C. Histoplasma capsulatum D. Paracoccidioides brasiliensis E. Trichophyton rubrum