The Cell Cycle


Problems

Problem : What class of molecules are responsible for regulating the cell cycle?


Problem : What are the two classes of regulatory proteins discussed in this section?


Problem : Why do cyclins have their name?


Problem : Fill in the blanks: _________ binds to cyclin-dependent protein kinases (Cdks) to activate them. Once activated, Cdks signal progression through the cell cycle through _________, a process in which phosphate groups are added to other molecules.


Problem : What is the name of the complex formed when mitotic cyclins bind to Cdks and what is the role of this complex?


Take a Study Break

SparkLife

Star Trek gets SEXY

Chris Pine and Zoe Saldana heat up the red carpet!

SparkLife

Are you afraid of relationships?

Auntie SparkNotes can help!

SparkLife

Wanna get JLaw's gorgeous glow?

Click here for simple, sexy makeup tricks!

SparkLife

Sexy starlet style

See every single look from the Met Gala!

SparkLife

Who'd be on your zombie-apocalypse crew?

We already dib'sed Genghis Khan.

Geek out!

The MindHut

Geeky Actors: Then and Now

Travel back in time!

The MindHut

Villains We Want These Actresses to Play

From super cute to super bad!

The MindHut

10 Movies Better Than Their Books

What do you think?

The MindHut

How To Look Like J-Law...

When you don't look like J-Law.

The MindHut

12 Scientific Inaccuracies in Into Darkness

What did Star Trek get wrong?

The Book

Cover image

Read What You Love, Anywhere You Like

Get Our FREE NOOK Reading Apps