What does the G1 checkpoint check? ¿Qué comprueba el punto de control G1? Is the DNA damaged? ¿Está dañado el ADM? Is the cell growing well enough? ¿Está la célula creciendo lo suficientemente bien? Did the DNA replicate properly? LEI ADN se replicó correctamente? Does the cell have the resources it needs to move on? ¿Tiene la célula los recursos que necesita para seguir adelante?

## Step 1<br />The G1 checkpoint, also known as the restriction point, is a critical control mechanism in the cell cycle. It is the first checkpoint in the G1 phase of the cell cycle, which is the first gap phase. <br /><br />## Step 2<br />The G1 checkpoint checks several conditions before the cell can proceed to the S phase, where DNA replication occurs. The conditions checked include:<br /><br />### **DNA Damage**: <br />The checkpoint ensures that the DNA is not damaged. If the DNA is damaged, the cell can halt the cell cycle to allow for repair.<br /><br />### **Cell Growth**: <br />The checkpoint ensures that the cell is growing well enough. If the cell is not growing well, it can halt the cell cycle to allow for growth.<br /><br />### **DNA Replication**: <br />The checkpoint ensures that the DNA has replicated properly. If the DNA has not replicated properly, the cell can halt the cell cycle to allow for repair.<br /><br />### **Cell Resources**: <br />The checkpoint ensures that the cell has the necessary resources to proceed to the next phase of the cell cycle. If the cell does not have the necessary resources, it can halt the cell cycle to allow for resource acquisition.<br /><br />## Step 3<br />If the conditions are not met, the cell can halt the cell cycle to allow for repair or resource acquisition. This ensures that the cell is healthy and ready to proceed to the next phase of the cell cycle.