Cell Cyle

Questions from micro quizzes

Why is ubiquitin needed for a cell to go through the cell cycle?

to deconstruct cyclins after their use (prevent cancer )

The Restriction Point is only passed if (and entrence to cell cycle only happens)

if the cell is treated with growth factors

Where are Quiescent cells

in G0

Which of the following changes would be expected to promote the development of cancer?

Loss of KCI protein and Extra Production of Cyclin D (why? explain)

If a check point is activated

the cell cycle pauses

What event might cause a cell to begin apoptosis

Viral infection

Which of these events can control whether or not a CDK is active?

The presence or absence of an activating phosphorylation and the presence or absence of a cyclin

Stem cells are unusual because after cell division,

the daughter cells are NOT identical

Mitotic daughter cells are

identical