Which of the following mutations is least likely to develop into a cancerous tumor? a non-disjunction mutation a chromosomal deletion mutation a inversion chromosomal mutation a single point mutation

The correct answer is A single point of mutation.

Explanation:

A point mutation can cause a single amino acid in a peptide chain of protein to change.  It can result in issues with that folding pattern in protein and their structures of the protein. The point mutation is also involved deletion or insertion of the single base pair. It does not cause dangerous or lethal mutations in organisms. It is a mutation that is least likely to develop into a cancerous tumor.

Thus, the correct answer is A single point mutation.