The causative agent of Mad cow disease is a :
Correct answer: C. Prion
- A. Virus
- B. Bacterium
- C. Prion
- D. Worm
Explanation
Mad cow disease is the common term for Bovine spongiform encephalopathy (BSE), a progressive neurological disorder of cattle. It is caused by prions. Symptoms include an excitable or nervous temperament to external stimuli such as touch to the skin. A prion (short for proteinaceous infectious particle) is a unique type of infectious agent, as it is made only of protein. Prions are abnormally structured forms of a host protein, which can convert normal molecules of the protein into abnormal structures.
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Biological classification uses taxonomic ranks, binomial nomenclature and shared characteristics to organize life into kingdoms. The major groups include prokaryotes, protists, fungi, plants and animals, with comparisons based on cell type, cell wall, nutrition, body organization, reproduction and evolutionary relationships; prokaryotes lack a membrane-bound nucleus.
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