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.
Correct Answer:
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Q124: Which of the following statements regarding the
Q125: The S cyclin-CDK complex:
A)controls the cell cycle
Q126: When nutrients are suboptimal for cell growth
Q127: How does a cell regulate the progression
Q128: p53 is an example of a(n):
A)oncogene.
B)proto-oncogene.
C)tumor suppressor.
D)cyclin-dependent
Q130: Which of the following is NOT true
Q131: A graduate student is planning an experiment
Q132: Cell division is regulated by:
A)growth factor signals.
B)signals
Q133: What would happen to a cell if
Q134: What is a cyclin?
A)a protein that activates
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