If the p53 gene is damaged, what can occur?

tumor growth

buildup of lactose

no antibodies formed

lack of oxygen to the brain

Tumor growth.

Explanation:

The p53 gene or TP 53 (tumor protein) gene is tumor-suppressor gene, which codes for a protein, p53 (protein 53). It is known as 'guardian of genome' as it regulates the cell cycle and prevents tumor formation by triggering apoptosis (regulated cell death).  

Damage to p53 gene leads to formation of a non-function tumor suppressor protein that cannot control cell division and trigger apoptosis. Due to this, cells divide in an uncontrolled manner and cause tumor formation.

Thus, the correct answer is option). 'tumor growth.'

gametes or germ cells are haploid cells (example: sperm and ova) containing only one set (or n) number of chromosomes and autosomal or somatic cells are diploid cells containing 2n number of chromosomes.