A mutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring.
Child' is ambiguous between 'offspring' and 'immature offspring'.
A mutation in parent's sex cells can cause new traits to appear in a child.
A mutation in parent's sex cells can cause new traits to appear in a what?

[A] concern
[B] pet
[C] parent
[D] germs
[E] haploid
[F] gametes
[G] DNA
[H] child