How Did the Discovery of Ribozymes Affect Our Understanding of the Evolution

question 9

Multiple Choice

How did the discovery of ribozymes affect our understanding of the evolution of proteins and nucleic acids?

• A) The discovery of ribozymes demonstrated that enzymes did not have to be proteins, and RNA enzymes (ribozymes) can be both information carrier and enzymatic molecule.
• B) The discovery of ribozymes helped us understand how RNA only codes for proteins and does not act as an enzymatic molecule. This helped support the hypothesis of RNA world as an origin for living organisms on Earth.
• C) The discovery of ribozymes verified that enzymes had to be proteins. This discovery helped to eliminate other theories about the origin of life in RNA world.
• D) The discovery of ribozymes demonstrated definitively that ribozymes function only as an enzymatic molecule and therefore evolved before information carrier molecules.

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Definitions:

Export Subsidy

A government policy to encourage export of goods and services through direct payments, tax relief, or other financial incentives.

Net Welfare

The overall well-being of individuals or society, accounting for all benefits and costs, including those that are not traded in markets.

Economic Progress

The overall growth and improvement in an economy’s productivity, standards of living, and welfare over time.

Ad Valorem Tariffs

Tariffs based on a percentage of the value of the imported goods, used as a trade policy tool.