Amino Acid Sequence Analysis

The video tutorial explains how to analyze amino acid sequences of proteins, focusing on a specific segment of a human protein. It guides students through comparing these sequences with those of other species, such as chimpanzees, gorillas, and rhesus monkeys, to identify differences. The tutorial also covers graphing these differences and analyzing a different protein, cytochrome C, across various species. Students are tasked with completing a data table, creating graphs, and answering questions about how amino acid sequences provide evidence for evolution.

What is the length of the protein sequence being analyzed?

• 146 amino acids

• 116 amino acids

• 104 amino acids

• 86 amino acids

Which amino acids are being focused on in the analysis?

• All amino acids

• 117 through 146

• 87 through 116

• 1 through 86

How many differences are there between the amino acid sequences of humans and chimpanzees?

• Zero

• One

• Three

• Two

What is the difference in the amino acid sequence between humans and gorillas?

• Amino acid 87

• Amino acid 116

• No difference

• Amino acid 104

How many differences are found between humans and rhesus monkeys?

• Four

• Three

• Two

• One

What is the purpose of creating a data table in this analysis?

• To record differences in amino acid sequences

• To calculate protein mass

• To compare protein lengths

• To list all amino acids

What type of graph is used to represent the differences in amino acid sequences?

• Line graph

• Scatter plot

• Pie chart

• Bar graph

What protein is used for comparison across different species in the final section?

• Collagen

• Myoglobin

• Cytochrome C

• Hemoglobin

Where is cytochrome C located within a cell?

• Nucleus

• Cytoplasm

• Cell membrane

• Mitochondria

How do amino acid sequences provide evidence for evolution?

• By highlighting differences that suggest common ancestry

• By showing identical sequences across all species

• By indicating the age of a species

• By proving species are unrelated