The figure below shows the # of amino acid substitution per 100 residues as a fu

Question

The figure below shows the # of amino acid substitution per 100 residues as a function of divergence for the 3 different proteins. For each statement below,

lFibrinopeptides Hemoglobin Cytochrome of plants Millions of years since divergence The figure above shows the number of amino acid substitutions per 100 residues as a function of divergence times for three different proteins. For each statement below, indicate whether it is false, true, or alternatively, if it is impossible to know given the cytochrome c has fewer amino acids nder purifying selection than Hemoglobin Cytochrome Chas more amino acids under purifing selection than Fibrinopeptides,Ees Fibrinopeptides have more amino acid sites where the identity of the amino acid does not matter for protein function, than do the other proteins Tme Hemoglobin has less amino acid sites where the identity of the amino acid matters for protein function, than do Cytochrome C Ease Mammals and reptiles diverged from a common ancestor around 300 million years

Explanation / Answer

I think the question is already answered correctly.

cytochrome C has fewer amino acid substitutions as per the graph. but the first question is not about amino acid substitutions but about the number of amino acids (if the question is correct). anyway, Cytochrome C has 100 amino acids whereas hemoglobin has 4 chains each with approximately 145 amino acids. therefore, TRUE.

if the second statement is bout the amino acid composition (cytochrome C- 100 amino acids; fibrinopeptide approximately 16) TRUE. but the graph is about amino acid substitutions. if it is about substitutions, it woud be FALSE.

similarly, 3. true

4. false

5. true

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