In response to DNA damage, the protein is phosphorylated and activates the transcription of a Cdk inhibitor to halt cell cycle progression.

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.

primary succession begins with a bare rock and ends with a forest secondary succession begins after a natural disaster where there is a temporary setback after a forest fire or local destruction, but the surrounding area can fill in

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