omework- DNA Technologies ?4/9/2018 11:59 PM 070.4/100 () 4/9/2018 06:42 PM Prin

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omework- DNA Technologies ?4/9/2018 11:59 PM 070.4/100 () 4/9/2018 06:42 PM Print st. Periodic Table Question 6 of 41 three hypothetical protein sequences from human, orangutan, and chimpanzee (sh M letter indicates a non-identical amino acid residue. A dash indicates a gap below) to determine the most likely sequence of the protein present in the last common ancestor (LCA) of humans and chimpanzees. A red in the alignment of the sequences. Human: ATSAAGYDEWEGGKVLIHLKLONRGALLELDIGAV Orangutan: ATSAAGWDEWEGGKVLIHLDGKLONRGALL Chimpanzee ATSAAGWDEWEGGKILIHLDGKLONRGALLELDIGAV Which of the following statements describe the approach she should take and the most likely sequence of the LCA of humans and chimpanzees? The ICA expressed a protein that contained aspartic acid and glycine (DG) where the human sequence shows a deletion The LCA expressed a protein with valine (V) at position 15. The orangutan sequence serves as the outgroup for comparison. ? The LCA expressed a protein that contained the deletion observed in the human sequence. ? The LCA expressed a protein with isoleucine (I) at position 15. ? The human sequence serves as the outgroup for comparison Give Up & View Sokim eCheck Answer ONext Ext about us contact ushelp

Explanation / Answer

answer:

- the lca expressed a protein that contained aspartic acid and glycin (DG) where the human sequences show deletion

- orangutan serves as the outgroup for comparison.

- lca expressed protein with isoleucine (I) at position 15.

- lca expressed a protein that contained the deletion observed in the human sequence.

Orangutan serves as the outgroup with showing a valine replacement, which is an isoleucine replacement in the chimps.

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