DRAW IT Below are the amino acid sequences (using single letters; see Figure 5.14) of three short segments of the FOXP2 protein from five species. These segments contain all amino acid differences between the FOXP2 proteins of these species. Compare the amino acid sequences by answering parts (a)–(d). Chimpanzee PKSSD ... TSSTT ... NARRD Mouse PKSSE ... TSSTT ... NARRD Gorilla PKSSD ... TSSTT ... NARRD Human PKSSD ... TSSNT ... SARRD Rhesus monkey PKSSD ... TSSTT ... NARRD (a)Circle the names of any species that have identical amino acid sequences for the FOXP2 protein.

Video transcript

Welcome back. Here's our next question based on three short segments of fox P, two proteins of four animal species. How many amino acids in the human sequence are different from those in the Z. Finch sequence. So, first of all, we'll look for our human and Z. Finch in the list of the species there. So we're going to find out, look compare the two amino acid sequences and count how many amino acids are different between them, so they're handily right next to each other. So let's compare the first segment. We see one different here and the second segment we see one right there, that's different. And in the third segment this last amino acid. So as we can see there's three amino acids in which these two sequences differ from each other. So go down to our answer choices and we see that choice C is 3. 3 amino acids, differentiate these two amino acid sequences. So that was a nice, really straightforward problem for us. And we'll see you in the next video.