Question

how does the brother sister example for linking evolution and classification work ?
ncert class 10 science

Answer 1

It states about the relationship between a real brother and sister. it says that real brother and sister will have a close DNA structure than their cousins. While this is true, that cousins have a common ancestor as their grandparents. in evolution species of the same kind will always have a more common ancestor. A study for classification of species I known as Molecular Phylogeny.