Explain" in the same line of argument, similarities in proteins and genes performing a given function among diverse organisms give clues to common ancestry and these biochemical similarities points to the same shared ancestry as structural similarities among diverse organisms" pg 131ncert evolution

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Please refer the solution below for the said query

The given statement means that the proteins and genes performing a specific function in different organisms show similarities. These structural similarities in proteins and genes is the proof that all these organisms have evolved from the common ancestor. As genes and proteins are the biomolecules which determine structure or body design of organisms. Hence, presence of structural similarities in diverse organisms and similar biomolecules (genes and proteins) both point out towards the common ancestry. 

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