Station #4: Comparative Biochemistry

Last updated over 5 years ago

11 Nsɛmmisa

Cytochrome C is a protein found in mitochondria. It is used in the study of evolutionary relationships because most animals have this protein. Cytochrome C is made of 104 amino acids joined together. Below is a list of amino acids in part of a cytochrome protein molecule for 9 different animals. Any sequences exactly the same for all animals have been skipped.

For each non-human animal, count any amino acids that are different than the human's sequence. When you finish, record how many differences you found below.

Station #4: Comparative Biochemistry

Last updated over 5 years ago

11 Nsɛmmisa

For each non-human animal, count any amino acids that are different than the human's sequence. When you finish, record how many differences you found below.

Number of Amino Acid Differences Compared to Human Cytochrome C - Horse

Number of Amino Acid Differences Compared to Human Cytochrome C - Chicken

Number of Amino Acid Differences Compared to Human Cytochrome C - Tuna

Number of Amino Acid Differences Compared to Human Cytochrome C - Frog

Number of Amino Acid Differences Compared to Human Cytochrome C - Shark

Number of Amino Acid Differences Compared to Human Cytochrome C - Turtle

Number of Amino Acid Differences Compared to Human Cytochrome C - Monkey

Number of Amino Acid Differences Compared to Human Cytochrome C - Rabbit

Based on Cytochrome C data, which organism is most closely related to humans?

Do any of the organisms have the same number of differences from human Cytochrome C? In situations like this, how would you decide which is more closely related to humans?

Station #4: Comparative Biochemistry

Station #4: Comparative Biochemistry

Number of Amino Acid Differences Compared to Human Cytochrome C - Horse

Number of Amino Acid Differences Compared to Human Cytochrome C - Chicken

Number of Amino Acid Differences Compared to Human Cytochrome C - Tuna

Number of Amino Acid Differences Compared to Human Cytochrome C - Frog

Number of Amino Acid Differences Compared to Human Cytochrome C - Shark

Number of Amino Acid Differences Compared to Human Cytochrome C - Turtle

Number of Amino Acid Differences Compared to Human Cytochrome C - Monkey

Number of Amino Acid Differences Compared to Human Cytochrome C - Rabbit

Based on Cytochrome C data, which organism is most closely related to humans?

Do any of the organisms have the same number of differences from human Cytochrome C? In situations like this, how would you decide which is more closely related to humans?

Big Question: How is biochemical evidence related to DNA evidence?

Number of Amino Acid Differences Compared to Human Cytochrome C - Horse

Number of Amino Acid Differences Compared to Human Cytochrome C - Chicken

Number of Amino Acid Differences Compared to Human Cytochrome C - Tuna

Number of Amino Acid Differences Compared to Human Cytochrome C - Frog

Number of Amino Acid Differences Compared to Human Cytochrome C - Shark

Number of Amino Acid Differences Compared to Human Cytochrome C - Turtle

Number of Amino Acid Differences Compared to Human Cytochrome C - Monkey

Number of Amino Acid Differences Compared to Human Cytochrome C - Rabbit

Based on Cytochrome C data, which organism is most closely related to humans?

Do any of the organisms have the same number of differences from human Cytochrome C? In situations like this, how would you decide which is more closely related to humans?

Big Question: How is biochemical evidence related to DNA evidence?