Fact 1: Amutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.

Fact 2: Fathers parent differently than mothers.

Given the two facts above, answer the question "A mutation can cause a new trait to appear in " with the following options: 
- haploid plants
 - mother or father's sex cells
 - mutagen
 - mutual funds
 - molecules
 - sperm and egg fuse
 - Males and females
 - genetic material


 

  mother or father's sex cells       