A scientist is performing an investigation using biochemistry. She compares the sequence of amino acids in the protein Cytochrome c of several species.
Her data is shown in the table.
AA_comp_table_2.jpg
This scientist claims that all living organisms are related by way of common descent. What evidence does the data in the table provide to support this statement?
a
The data shows that species from humans to yeast all share the same DNA, and identical amino acids, thus - supporting the statement.
b
The differences in amino acids sequence relate directly to DNA, and the more differences in amino acids, the more similar the organisms.
c
The data shows that species from humans to yeast all share a common protein, and therefore, similar DNA supports the statement.
d
The similarities in amino acids does not relate to DNA, and the more differences in amino acids between species, supports the statement.