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A ribozyme is ______. - Biology (Theory)

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Question

A ribozyme is ______.

Options

  • a section of the DNA that is expressed in the mRNA.

  • a self-splicing intron that acts like an enzyme.

  • a complex made up of many ribosomes replicating the same strand of mRNA.

  • one of the small ribosomal subunits.

MCQ
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Solution

A ribozyme is a self-splicing intron that acts like an enzyme.

Explanation:

A ribozyme is a unique RNA molecule that can speed up chemical reactions, much like a protein enzyme. One of the best examples is a self-splicing intron, which is an RNA sequence that has the ability to physically cut itself out of an RNA strand without needing any help from outside proteins. This discovery was groundbreaking because it proved that RNA can act as both a genetic code and a biological tool to perform chemical work.
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Chapter 6: Molecular Basis of Inheritance - Test Your Progress [Page 267]

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Nootan Biology [English] Class 12 ISC
Chapter 6 Molecular Basis of Inheritance
Test Your Progress | Q 1. 89. | Page 267
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