Which of the Following Molecules Triggers the Cell's Passage Past

question 33

Multiple Choice

Which of the following molecules triggers the cell's passage past the G₂ checkpoint into mitosis?

• A) PDGF
• B) MPF
• C) cyclin
• D) Cdk

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Definitions:

Pupillary Constriction

The narrowing or tightening of the pupils, which can occur in response to light exposure or during focusing on objects.

Arcus Senilis

A gray or white arc visible above and below the outer part of the cornea, usually related to aging.

Unequal Pupillary Constriction

A condition where the pupils of the eyes do not shrink to the same size in response to light, potentially indicating neurological issues.

Tear Production

Tear production involves the secretion of fluid by the lacrimal glands of the eye, providing lubrication to protect and maintain eye health.