The Fact That a Nucleic Acid Is a Very Complicated

question 22

Multiple Choice

The fact that a nucleic acid is a very complicated molecule suggests that

• A)the RNA-first hypothesis is impossible.
• B)RNA could not have arisen on its own by chance,but required enzymes to guide the synthesis of nucleotides and then nucleic acids.
• C)sophisticated enzymes were not present or available to synthesize it.
• D)no natural system could ever generate it.
• E)the protein-first hypothesis is therefore the only plausible hypothesis.

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Definitions:

Onset of Action

The time it takes after a medication is administered for its effects to be noticed by the patient or observed clinically.

Duration of Action

The length of time a drug continues to produce its therapeutic effect after administration.

Medication Error

Any preventable event that may cause or lead to inappropriate medication use or harm while the medication is in the control of the healthcare professional, patient, or consumer.

Incident Report

Documentation of any unusual or unexpected event in a healthcare setting that could have or did lead to harm for patients, staff, or others.