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The amino acid sequences of human and bonobo hemoglobin are almost identical, yet they differ considerably from the sequence of the hemoglobin of wolves. This fact indicates that

1) bonobos are more closely related to humans than to wolves.
2) humans are more closely related to wolves than to bonobos.
3) wolves and bonobos are closely related.
4) none of the options is correct

1 Answer

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Final answer:

Amino acid sequence similarities between human and bonobo hemoglobin suggest a close evolutionary relationship, supporting the idea that humans are more closely related to bonobos (and by extension, chimpanzees) than to wolves.

Step-by-step explanation:

The amino acid sequences of hemoglobin can reveal evolutionary relationships between species. The fact that the amino acid sequences of human and bonobo hemoglobin are almost identical, but differ considerably from that of wolves, indicates that bonobos are more closely related to humans than to wolves. This is consistent with genetic studies showing that humans share 99 percent of their DNA with both chimpanzees and bonobos, indicating a recent common ancestor. In contrast, wolves are not as closely related to humans or primates. Therefore, the correct interpretation of the amino acid sequence data would be that bonobos are more closely related to humans than to wolves. Comparison of human and chimpanzee sequences shows no difference, which supports this interpretation as well. Furthermore, the slight difference between human and rhesus monkey sequences, with a single amino acid change, also suggests that chimpanzees and humans share a more recent common ancestor than humans and rhesus monkeys or humans and yeast.

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