Question

while researching, cancer, angel discovered a lot of information about what happens in a cell to cause the uncontrolled growth that is characteristic of cancer. which of the follo
during the $g_{1}$ phase of the cell cycle, the dna continued to replicate repeatedly causing it to grow into a cancerous tumor.
dna replication did not occur during the cell cycle which caused increased cellular content resulting in a cancerous tumor.
a checkpoint during the m phase of the cell cycle was over activated and stimulated which caused the cell to swell resulting in a cancerous tumor.
a mutation, which affected one of the check points during the cell cycle, caused the cell to continue to grow resulting in a cancerous tumor.

Explanation:

El cáncer se origina a menudo debido a mutaciones que afectan los puntos de control del ciclo celular. Estos puntos de control son esenciales para detener la división celular si hay daño en el ADN o otras irregularidades. Si un punto de control está afectado por una mutación, la célula puede continuar dividiéndose de manera no controlada, lo que conduce a un tumor canceroso.

• En el primer opción, el ADN se replica durante la fase S, no la G1.
• En el segunda opción, la replicación del ADN es necesaria para la división celular, pero su ausencia no causaría un tumor canceroso de la manera descrita.
• En el tercera opción, los puntos de control en la fase M se activan para detener la división si hay problemas, no para hacer que la célula se hinche.

Answer:

A mutation, which affected one of the check points during the cell cycle, caused the cell to continue to grow resulting in a cancerous tumor.