In Levin's studies of reinforcement in Phlox, what result would have challenged the notion that reinforcement is occurring in the system?
A) Red flowers and pink flowers from P. drummondii producing about the same number of seeds when each is hybridized with P. cuspidata.
B) Red flowers from P. drummondii produce fewer seeds when hybridized with P. cuspidata than pink flowers from P. drummondii does when hybridized with P. cuspidata.
C) Mating calls of the allopatric population of P. drummondii more closely resembles the mating calls of P. cuspidata than they do the mating calls of the sympatric population of P. drummondii.
D) Mating calls of the sympatric population of P. drummondii more closely resembles the mating calls of P. cuspidata than they do the mating calls of the allopatric population of P. drummondii.
E) The mating calls of sympatric and allopatric populations of P. drummondii are very similar.

Question

Quizplus · Accepted Answer

If red flowers and pink flowers from P. drummondii produced about the same number of seeds when each is hybridized with P. cuspidata, it would suggest that there is no selective advantage for one flower color over the other in terms of reproductive success, challenging the notion that reinforcement is driving the evolution of distinct traits to prevent hybridization.

In Levin's Studies of Reinforcement in Phlox, What Result Would