Which of the Following Statements About Protein Modifications Is INCORRECT

question 43

Multiple Choice

Which of the following statements about protein modifications is INCORRECT?

• A)Addition of one or more sugar molecules results in a fully mature protein called a glycoprotein.
• B)Proteins can be modified by reversible addition or subtraction of a phosphate group.
• C)Proteins can be modified following the addition of a polyadenylated tail.
• D)Phosphorylation or dephosphorylation is a rapid way of activating or inhibiting proteins.
• E)Protein modification most often causes a change in conformation and thus a change in function.

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Definitions:

Linear Regression Model

A mathematical approach that fits a linear equation to observed data to model how a dependent variable changes in relation to one or more independent variables.

Standard Deviation

A statistic that measures the dispersion or variation of a set of values from their mean.

Confidence Interval

A range of values, derived from a data set, within which the true parameter value is estimated to lie with a certain level of confidence.

Expected Value

The weighted average of all possible values of a random variable, weighted by their respective probabilities.