A Researcher Is Evaluating the Expression of P53 in Cells

question 39

Multiple Choice

A researcher is evaluating the expression of p53 in cells she is culturing in the laboratory. She notices that in a small group of cells, high levels of phosphorylated p53 occur in the nuclei. What can she deduce about these cells?

• A)These cells are normal.
• B)Within these cells, the cell cycle has been halted at the G₂/M transition.
• C)These cells likely contain damaged DNA.
• D)All of these cells have entered meiosis.
• E)All of these cells have entered mitosis.

---

Definitions:

Confidence Level

The probability, expressed as a percentage, that a parameter lies within a specified range of values (confidence interval).

Population Mean

The average value of a property in a population.

Confidence Interval

A range of values, derived from the sample data, that is likely to contain the value of an unknown population parameter, with a certain degree of confidence.

Sample Size

The number of observations or data points collected from a subset of a larger population for the purposes of statistical analysis.