The Protein-First Hypothesis

question 52

Multiple Choice

The protein-first hypothesis

• A) is supported by the discovery that RNA can act as a catalyst.
• B) is supported by the fact that RNA can act as a substrate and as an enzyme.
• C) suggests it was an "RNA world" about 4 billion years ago.
• D) suggests that only RNA was needed to progress to the formation of the first cells.
• E) suggests that sophisticated enzymes with the ability to synthesize DNA and RNA arose first from small molecules provided by the ocean.

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Definitions:

Consideration

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Breach of Contract

A situation where one or more parties involved in a contract fail to fulfil their legal obligations as outlined in that contract.

Writing Requirement

A legal stipulation that certain kinds of contracts must be in writing to be enforceable.

Purchase Price

The amount of money that is required to buy something.