The amino acid chains making up hemoglobin in different species:

a) differ depending on how long it has been since the species last shared a common ancestor.
b) differ depending on whether the species are marine or terrestrial.
c) are identical--otherwise the hemoglobin cannot function properly.
d) reflect differences in how the hemoglobin functions in the species.
e) can only be compared among mammalian species since non-mammalians do not possess hemoglobin.


Answer: a) differ depending on how long it has been since the species last shared a common ancestor.

Biology & Microbiology

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