Question

use the following information to answer questions 10 - 11

1. complete the table identifying the number of differences between the organisms compared based on the information above. (4pts)

1. based on your answers to question 10, which organism is the closest related to humans? how do you know? (2pts)

Explanation:

Step1: Compare Human and Horse

Human: Lys - Glu - His - Iso
Horse: Arg - Lys - His - Lys
Differences: 3 (Lys vs Arg; Glu vs Lys; Iso vs Lys)

Step2: Compare Human and Gorilla

Human: Lys - Glu - His - Iso
Gorilla: Lys - Glu - His - Lys
Differences: 1 (Iso vs Lys)

Step3: Compare Human and Zebra

Human: Lys - Glu - His - Iso
Zebra: Arg - Lys - His - Arg
Differences: 3 (Lys vs Arg; Glu vs Lys; Iso vs Arg)

Step4: Compare Human and Chimpanzee

Human: Lys - Glu - His - Iso
Chimpanzee: Lys - Glu - His - Iso
Differences: 0

The fewer amino - acid sequence differences, the closer the evolutionary relationship. Chimpanzee has 0 differences with human.

Answer:

Human & Horse: 3
Human & Gorilla: 1
Human & Zebra: 3
Human & Chimpanzee: 0

For question 11: