Which Statement Is NOT True About the RNA-First Hypothesis

question 69

Multiple Choice

Which statement is NOT true about the RNA-first hypothesis?

• A)It is supported by the discovery that RNA can act as a catalyst.
• B)It is supported by the fact that RNA can act as a substrate and as an enzyme.
• C)It suggests that there was an "RNA world" about 4 billion years ago.
• D)It says that first RNA,then DNA,then proteins would have been necessary to interact in the chemical evolution that would have led to the development of the first cells.
• E)It suggests that only RNA was needed to progress to the formation of the first cells.

---

Definitions:

Sample Coefficient of Correlation

A measure indicating the degree and direction of linear relationship between two quantitative variables within a sample.

Estimated Regression Line

A line calculated from sample data that best fits the scatterplot of the data points, used to make predictions.

Total Variation

The sum of squared differences between individual observations and the overall mean of a data set.

Dependent Variable

The variable in an experiment or study that is expected to change in response to changes in the predictor variables.