You are presented with the question "What causes new traits because of reproduction?" and the following answer choices: 
- snail
 - mutation
 - animals
 - coded genes
 - gene flow
 - hormones
 - flowers
 - insects

Now knowing that amutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring and upon reproduction, offspring are subject to mutation, choose the best answer.


 

  mutation       