Spot the flaw. Examine the following figure, which displays the frequency distribution of similarity values (the percentage of amino acids that are the same) between equivalent (homologous) proteins in humans and pufferfish of the genus Fugu (data from Aparicio et al. 2002).

a. What type of graph is this?

b. Identify the main flaw in the construction of this figure.

c. What are the main results displayed in the figure?

d. Describe the shape of the frequency distribution shown.

e. What is the mode in the frequency distribution?

Transcribed Image Text:

Number of proteins 2700 2500 2250 2000 1750 1500 1250 1000 750 500 250 0 0 10 20 30 40 50 60 70 80 90 100 Similarity (%)