Biology, 22.08.2020 03:01 hdwoody2002

Prompt Comparing amino acid sequences in proteins has been used to determine the relatedness of organisms. Below is a graphic that shows
amino acid sequence differences between different organisms for a protein keratin Changes in amino acid sequences are known to cau
changes in structure of proteins.
23
9
Species A Species B Species c Species D Species E
Species A
4
1
Species B
12 18 5
Species
8 10
Species D
20
Species E
Part A. Consider species A, D, and E Using the data provided, describe how the structures of their keratin proteins would compare.
Part B. Keratin is made up of about 450 amino acids. Determine the similarity in percentages between species A and B A and C, and B
and C. Explain how amino acid sequences can be used in determining how closely related two species are.
Part C. Based on this data, predict which two species would be more closely related to one another
gallns
Part D. Justify your predictions to part C

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