(b)In the sequence for the mouse, circle any amino acid that differs from the sequence for the chimpanzee, gorilla, and rhesus monkey. Then draw a box around any amino acid that differs from the human sequence.

Video transcript

Hi everyone here's our next problem based on the three short segments of fox P. Two proteins of four animal species which of the following species has the same amino acid sequence as chimpanzees. So we'll highlight our chimpanzee here. That's the sequence we're comparing it to. And let's look at choice a human. Um Here's the human and when we compare these two sequences we see that the human and chimpanzee sequences differ here in the middle so they are not the same and therefore human is not our correct choice. So we'll move on to our next choice possibility and the next is B mouse the mouse sequence. And when we look at this two we see actually mouse and chimpanzee are identical. So our answer here seems to be mouse. That's a little surprising since human is a choice but it just goes to show you the limitations of here. We're looking at just a short sequence of one of one protein here. So not looking at the whole genome or anything like that. So let's move on just for the sake of being thorough and look down we've got C. Z. Finch raise our mouse here, chimpanzee and Z. Finch and when we look at their amino acid sequences they differ in one at the end so that's not our answer. They're not identical. And finally choice D. Snake. Well snake isn't even one of our choices so d obviously not our answer. So we have choice. B mouse as the answer to this question of which in this particular segment has the same amino acid sequence as chimpanzees. See you in the next video.