Continuity of life on Earth — Question 19

QUESTION 19

The table of data shows a comparison of amino acids sequences in the same section of haemoglobin molecules from a number of different species. From the given information, which of the following species’s haemoglobin protein is most similar to human haemoglobin protein?

Species	Sequence of amino acids
Human	Lys	Glu	His	Ile	Val	Glu	Phe	Lys
(A)	Lys	Glu	His	Lys	Val	Met	Phe	Lys
(B)	Lys	Glu	Lys	Ile	Val	Glu	Phe	Lys
(C)	Lys	Asp	His	Leu	Val	Met	Phe	Lys
(D)	Lys	Val	His	Asn	Val	Glu	Phe	Lys