Geneticists have observed that fruit flies that commonly inherit vestigial wings also inherit lobed eyes. Observations such as this have helped to develop the genetic concept known as:
A. dominance.
B. segregation.
C. gene linkage.
D. crossing-over.
If two traits tend to be inherited together it is likely they are located close together on the same chromosomes. Therefore, when the sex cell undergoes meiosis, those traits migrate together to the mature sex cell used in fertilization.