Imagine that you have data that shows that humans from a light-skinned population can exhibit greater similarity in DNA sequence with individuals from a dark-skinned population than with other individuals in the light-skinned population. Based on these hypothetical data, should these light- and dark-skinned human populations be considered separate species under the phylogenetic species concept? Why or why not?
A. Yes. Regardless of the DNA sequence data, they have different skin colors.
B. No. The DNA sequence data do not support the conclusion that they represent different clades.
C. Yes. The DNA sequence data conclusively show that they represent different clades.
D. Maybe. It depends on whether the two populations can interbreed and produce viable offspring
Answer: B. No. The DNA sequence data do not support the conclusion that they represent different clades.
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