When a single species changed into two or more separate species, is called speciation. Speciation can take place due to reproductive isolation. In reproductive isolation, the separated species no longer can interbreed among themselves. This is happened due to mating differences, sterility or environmental barriers which finally results into the adaptive splitting into two species.

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Using the attached figure, what statement is true? Genetics382FlowerTreeExercise06.pdf 92 KB Genetics382FlowerTreeExercise06.pdf

Lesechka [4]

Answer:

The correct answer is option B. "Flowers on Peak 1 and flowers on Peak 4 are genetically identical".

Explanation:

Phylogenetic trees are graphical representations of the relationships among species, at which the closer two organisms are, the closer they are put together in the tree. Modern phylogenetic trees are constructed based on the anaylsis of genetic material, usually mitochondrial DNA. In this case, flowers with different phenotype and genotype were classified in a phylogenetic tree. Since flowers on peak 1 and flowers on peak 4 are grouped together it is safe to assume that the two organisms are genetically identical. I attached the missing figure.