AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

GENE MUTATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Kinases and cyclins are internal factors that ____ (practice test on Schoology)
A
cause apoptosis
B
control the cell cycle
C
cause cancer cells to break away
D
prevent mitosis
Explanation: 

Detailed explanation-1: -The cell cycle is regulated by many cyclins and cyclin-dependent kinases (CDKs) that are a group of serine/threonine kinases. They form complexes with cyclins to stabilize, activate, and phosphorylate CDKs in the specific phases [6, 7].

Detailed explanation-2: -Kinases and Cyclins are Internal Factors that Regulate Division. When cells reach a checkpoint within the cell cycle, whether they continue division or abort the process is regulated by cyclin-dependent protein kinases.

Detailed explanation-3: -Two of the most important internal factors are kinases and cyclins.

Detailed explanation-4: -Kinases catalyze phosphoryl transfer from ATP to substrates and change downstream protein-protein interaction in such way that a signaling pathway is either switched on or shut off. Scientists have established the central roles of CDKs, Plks, and Aurora kinases in cell cycle regulation.

There is 1 question to complete.