Question

1. what causes the formation of cancerous tumors in relation to apoptosis?

Explanation:

Apoptosis is programmed cell - death. When genes regulating apoptosis are mutated, cells may not undergo normal apoptosis. This allows abnormal cells to accumulate instead of being eliminated, leading to the formation of cancerous tumors.

Answer:

Mutations in genes regulating apoptosis, which prevent normal programmed cell - death and allow abnormal cell accumulation.