You are presented with the question "What creates new genetic variation in the gene pool?" and the following answer choices: 
- The bending of a ray of light
 - passenger pigeons
 - peachleaf willow
 - Warm air moving into cold air
 - random changes in genes
 - that material's properties
 - a tree falling
 - By wind and rain

Now knowing that mutation creates new genetic variation in a gene pool and mutations Mutations are caused by random changes in genes, choose the best answer.


 

     random changes in genes    