What Is Cyclin

question 20

Multiple Choice

What is cyclin?

• A) a cellular enzyme that switches cyclin-dependent protein kinases on and off
• B) a second messenger that switches cyclin-dependent protein kinases on and off
• C) a hormone that switches cyclin-dependent protein kinases on and off
• D) a cellular protein that switches cyclin-dependent protein kinases on and off
• E) a cell receptor that switches cyclin-dependent protein kinases on and off

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Definitions:

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