DRAW IT Below are the amino acid sequences(using the single-letter code; see Figure 5.14) of four short segments of the FOXP2 protein from six Speeles: chimpanzce (Q, orangutan (()), gorllla (G), rhesus macaque (R), mouse (M), and human (H). These segments contain all of the amino acid differences helween the FOXP2 proteinsof these species.
Use a highlighter to color anv amino acid that varies among the species. (Color that amino acid in all sequences.
- (a) The C, G, R sequences are identical. Identily which lines correspond to those sequences.
- (b) The O sequence differs from the C, G, R speieces at two amino acids. Underilnethetwodlffcrences inthe H sequence.
- (c) The O sequence diffen from the C, G, R sequences at one amino acid (having V instead of A) and from the H sequence at three amino acids. Identify tho O sequence.
- (d) In the M sequence,circle the amino acid(s) that differ from the C, G, R sequence, and draw a square around those that differ from the H sequence.
- (e) Primates and rodents diverged between 60 and IO0 million years ago. and chimpanzees and humans about 6 million years ago. Compare the amino acid differences between the mouse and the C, G, R species with those between the human and the C, G, R species. What can you conclude?
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