Hemoglobin is a protein found in vertebrate blood. Human and chimpanzees have the same sequence of amino acids in their
hemoglobin. Humans and monkeys have 96% similarity in their
hemoglobin sequences. From this information a biologist can conclude
that
O monkeys and chimpanzees are more closely related than humans and
chimpanzees.
O humans and chimpanzees shared a common ancestor more recently than
humans and monkeys.
O humans and chimpanzees shared a common ancestor with monkeys more
recently than with each other.
O hemoglobin is important for primates.