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.

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Definitions:

Russian Ruble

The national currency of Russia, utilized as the medium of exchange within the country.

Appreciate

To increase in value or price over a period of time.

Freely Flexible Exchange Rates

A currency system where the value of a currency is allowed to fluctuate according to the foreign exchange market without direct government intervention.

Trade Deficit

A situation where a country's imports of goods and services exceed its exports of them.