Answer
If the amino acid sequence of two proteins has changed more likely, then the sequence of amino acids in both proteins resembles and they exhibit same properties, then the species having these proteins show similarities.
Work Step by Step
Step 1 of 2:
Sometimes, two species have same protein, but they are distantly related, which is because the arrangement of amino acids and the sequence of amino acid in a protein are an important factor responsible for the property of the proteins. This change in amino acid sequence is occurring due to mutations.
Step 2 of 2 If the amino acid sequence of two proteins has changed more likely, then the sequence of amino acids in both proteins resembles and they exhibit same properties, then the species having these proteins show similarities. This study is a very much important aspect in genetics and evolutionary biology; because it tells how closely two species are related to each other.
