Phylogenetic Studies of Self-Incompatibility in Leptosiphon

Multiple Choice

Phylogenetic studies of self-incompatibility in Leptosiphon

A) revealed that self-incompatibility evolved only once.
B) showed that self-incompatibility was the ancestral trait.
C) supported the sensory exploitation hypothesis.
D) could not be performed due to lack of a molecular clock.
E) demonstrated convergent evolution of self-incompatibility.