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13 questions
Apoptosis is
programmed cell death
mysterious cell death
programmed cellular mutation
mysterious cellular mutation
The phase of mitosis in which the sister chromatids go away from each other
prophase
metaphase
anaphase
telophase
In which phase of mitosis do the sister chromatids line up at the midline of the cell?
Prophase
Metaphase
Anaphase
Telophase
Which of these events is least likely to lead to cancer?
A cell not passing the checkpoint inspection and exiting to G0
A cell not passing the checkpoint inspection and continuing in the cycle
Lack of functional p53 gene
Lack of regulations such as cyclins and Cdks
What is the expected percent change in the DNA content of a typical eukaryotic cell as it progresses through the cell cycle from the start of the G1 phase to the end of the G2 phase?
-100%
+50%
+100%
-50%
__________________ are enzymes that activate other proteins by phosphorylating them.
Phosphatases
Kinases
Ligases
DNA polymerases
For a cyclin-dependent kinase (Cdk) to be active, it needs to bind to a
kinase
cyclin
coenzyme
Cancer can occur if
cells do not properly participate in cell signaling
cells grow uncontrollably
cells do not "respect" the checkpoints of the cell cycle
there is a genetic mutation
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