Shown below is the Primates cladogram and a table listing the total number of amino acid differences in the Cytochrome c Oxidase il protein between the human
and the five other organisms. According to the information given, which number would fit in the position with the question mark?

The correct answer is option B. "26".

Explanation:

Cladograms are graphical representations that show how different species are according to different features, such as differences in amino acid sequences of key proteins such as Cytochrome c Oxidase. In this case, the cladogram shows that humans are most close to chimp because they only have 5 different amino acids, while other species such as Woolly monkey have 67 different amino acids. A number that would fit in the position with the question mark, which is the Baboon will be 26. This number have a quantity that is between the number of amino acids that are different in Gorilla and Howler monkey, which are 7 and 68 respectively. Therefore, 26 fits with the position of Baboon in the cladogram.