You are presented with the quiz "A mutation in the sex cells of a parent can cause a new trait to appear in the parent 's what?" 

But you don't know the answer, so you turn to your teacher to ask for hints. He says that "amutation in the sex cells of a parent can cause a new trait to appear in the parent 's offspring" and "child' is ambiguous between 'offspring' and 'immature offspring'". 

So, what's the best answer to the question?


 

     child      