Fact 1: Cancer genes can be inherited.

Fact 2: Inherited characteristics are passed on by our genes.

Given the two facts above, answer the question "Cancer genes are an example of the type of thing that can be passed on through:" with the following options: 
- people
 - blood exposure
 - massive damage
 - viruses
 - Plant reproduction
 - contagious
 - reproduction
 - humans


 

       reproduction  