M Prep | MCAT 2015 Question of the Day - Prep, Practice Questions, and More!

Q:	It is known that wee1 kinase is an enzyme involved in the regulation of the cell cycle. Cells mutated at the wee1 kinase gene, such that resultant protein is non-functional, divide at a smaller size than wild-type cells. What does this suggest about the role of wee1 kinase?

inhibition from the G2 to M phase of the cell cycle

activation from the G2 to M phase of the cell cycle

inhibition from the G1 to S phase of the cell cycle

activation from the G1 to S phase of the cell cycle