The method of independent contrasts
A) allows evolutionary biologists to use phylogenetic comparative methods for studying adaptations.
B) compares the best possible tree overall with the best possible constrained tree.
C) relies on running odds ratio tests.
D) relies on the logic of bootstrap analysis.

Question

Quizplus · Accepted Answer

The method of independent contrasts is a commonly used phylogenetic comparative method that allows evolutionary biologists to investigate adaptations by controlling for phylogenetic relationships between species. It involves comparing the differences (contrasts) in traits between two related species to understand which trait changes are due to adaptions and which are due to evolutionary history. Option B is incorrect because the method of independent contrasts does not involve comparing different tree topologies. Option C is incorrect because it does not involve odds ratio tests. Option D is incorrect because bootstrap analysis is a method used to assess the uncertainty of phylogenetic trees, but it is not directly related to the method of independent contrasts.

The Method of Independent Contrasts