Regulation of the Cell Cycle Is Dependent on Cyclins and Cyclin-Dependent

question 37

Multiple Choice

Regulation of the cell cycle is dependent on cyclins and cyclin-dependent kinases (CDKs) .The key factor that allows a cell to progress beyond the restriction point in G1 is

• A) the presence of cyclin.
• B) the absence of cyclin.
• C) the presence of cyclin and CDK.
• D) phosphorylation of RB by CDK.
• E) the presence of external signals from growth factors.

---

Definitions:

Innovative

Characterized by introducing new ideas, products, or methods that bring significant changes or improvements.

Groundbreaking

Characterized by originality or innovation, leading to new discoveries, developments, or significant changes.

Process

A series of actions or steps taken in order to achieve a particular end.

Cause Marketing

A marketing strategy where businesses and charities form a partnership to market an image, product, or service for mutual benefit.