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:

Budgeted Production

An estimate of the number of units that should be produced in a period to meet anticipated sales.

Direct Labor Costs

Expenses associated with the wages and benefits of employees who are directly involved in the production of goods or services.

Budgeted Manufacturing Overhead

Budgeted manufacturing overhead is the estimated amount of indirect costs that are expected to be incurred in the manufacturing process during a specified period.

Direct Labor-hour

A measure of the total amount of time worked by employees directly involved in manufacturing a product or providing a service.