Respuesta :
Answer:
Cyclin protein
Explanation:
The cyclin activates the Cdk as a kinase, but it also directs the Cdk to a specific set of target proteins.
Answer: The cyclin protein
Explanation:
cyclin proteins are group of protein that regulate the cell cycle by cycling dependent kinases.
Cyclin is phosphorylated and activate the transcription of cyclin dependent kinases inhibitor to halt cell cycle progression.