Since Watson and Crick Described DNA in 1953, Which of the Following

question 29

Multiple Choice

Since Watson and Crick described DNA in 1953, which of the following might best explain why the function of small RNAs (miRNAs) is still not well understood?

• A) As RNAs have evolved since that time, they have taken on new functions.
• B) Watson and Crick described DNA but did not predict any function for RNA.
• C) The functions of small RNAs could not be approached until the entire human genome was sequenced.
• D) Ethical considerations prevented scientists from exploring this material until recently.
• E) Recent advances in technology and our understanding of how DNA is expressed have made this possible.

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Definitions:

Population Proportion

The fraction of the population that possesses a particular attribute, characteristic, or trait.

Standard Normal Distribution

A probability distribution that has a mean of zero and a standard deviation of one, used in statistical analysis to represent standardized values of a dataset.

Confidence Interval

A span of numerical values, calculated from sample data, speculated to potentially contain the value of an unknown population parameter.

Population Proportion

The portion of a population that possesses a certain property or characteristic.