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Question

Which of these is a non-protein enzyme?

A
α-amylase
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B
Nitrogenase
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C
Histidine kinase
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D
Ribozyme
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Solution

The correct option is B Ribozyme
Ribozymes are also known as ribonucleic acid enzymes. These are RNA molecules which helps in the catalysis of a particular reaction. The RNA can act as both genetic material and can act as a biocatalyst. It act as a part of ribosome which attaches to the amino acid during protein synthesis. Thomas R. Cech and Sidney Altman discovered catalytic properties of RNA. So, the correct answer is option D.

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