Question

Stickleback fish found in lakes rapidly evolve a low armor plate morphology when compared to marine populations. Analysis of the gene responsible shows that populations with low plating form one clade and marine populations form another. However, gene trees formed with other genes show that the low plating phenotype probably evolved independently multiple times. How have scientists resolved these contradictory gene trees?

Answer 1

Step-by-step explanation:

A clade can be define as the monophyletic group which exhibit the group of organisms that were linked to the common ancestors. These are formed due to similarities in the features and forms.

The single origin of a gene low plating in the ocean that remained in the low frequency till the lakes are colonized. Then the gene independently became fixed in each clade.