Charcot-Marie-Tooth is the most commonly inherited peripheral neuropathy, and has no known cure. Patients suffer damage to motor and sensory neurons, leading to degeneration of muscles and gradual loss of motor control.Genetic studies have found that Charcot-Marie-Tooth may be caused by a mutation in the gene Mitofusin-2 (MFN2), which causes mitochondria to form large clumps. In what area of a neuron are these clumps most likely to cause a problem?
A. Myelin
B. Synapse
C. Dendrite
D. Axon
E. Soma
Answer: D
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Which of the following structural features is common to cellulose, chitin, and peptidoglycan?
A) They are all composed of glucose in either the ? or ? form. B) They all contain peptide bonds. C) They can all form bonds between polymer chains that create parallel strands. D) They are all composed of highly branched fibers.
The distinction between karyogamy and plasmogamy is:
A. Karyogamy is the fusion of nuclei and plasmogamy is the fusion of the cytoplasm. B. Karyogamy is the fusion of cytoplasm and plasmogamy is the fusion of nuclei. C. Karyogamy is the fusion of dikaryotic cells and plasmogamy is the fusion of gametes. D. Karyogamy is the fusion of hyphae and plasmogamy is the fusion of mycelia. E. Karyogamy is the fusion of nuclei and plasmogamy is the attack of blood plasma by fungal pathogens.
Four of the five answers listed below are related as members of the same group. Select the exception
a. glucose b. fructose c. cellulose d. ribose e. deoxyribose
Anatomy deals with
a. processes by which an individual survives and reproduces. b. how the body’s structures are put to use. c. how metabolism and behaviors are adjusted when conditions change. d. control mechanisms that regulate body processes. e. how the body is structured.