Diversity in the Living World
CJD caused by
Correct Answer: Option(d)
Solution: Bovine spongiform encephalopathy is known as mad cow disease. The variant of this disease in humans is known as Creutzfeldt-Jakob disease (CJD). This disease results in the degeneration of the central nervous system. The disease is caused by a prion. The prions are infectious particles made up of protein. The infection is similar to the viral infection.
Thus, the correct answer is option D.