Which statement contains a mistake in the described cell cycle mechanism? If there are no mistakes, select the last option.
Group of answer choices
1. Upon receiving a mitogenic signal in G0, the cell begins to produce cyclin D, facilitating entry into G1.
2. Cyclin D binds to CDK4/6 and the cyclin D-CDK4/6 complex phosphorylates Rb.
3. phospho-Rb detaches from E2F and deactivated E2F translocates to the nucleus where deactivated E2F promotes the transcription of genes needed for DNA synthesis, e.g., cyclin E.
4. When cyclin E levels are high enough, cyclin E binds to Cdk2, pushing the cell into S phase.
5. No mistake in this mechanism