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The presence of evolutionary traces is because some of the residues that perform key functional and structural roles tend to be preserved by natural selection; other residues that may be less crucial for structure and function tend to mutate more frequently.

The presence of evolutionary traces is because some of the residues that perform key functional and structural roles tend to be preserved by natural selection; other residues that may be less crucial for structure and function tend to mutate more frequently. Correct Answer True

The residues that perform key functional and structural roles tend to be preserved by natural selection. For example, active site residues of an enzyme family tend to be conserved because they are responsible for catalytic functions. Therefore, by comparing sequences through alignment, patterns of conservation and variation can be identified.

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Arrange the steps of succession planning in the correct sequence.
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The signal sequences are typically _______ residues long, rich in _____ charged residues such as arginines as well as hydroxyl residues such as serines and threonines, but devoid of ______ charged residues.
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S1: Over the centuries the face of the earth has become crowded with monuments and memorials.
P: Films, pictures and even miniature models can be made of the relics for prosperity interested in knowing about them.
Q: Some people however would contend that antiquity should be preserved for future generations.
R: If they were all to be preserved we will have very little space for other, more useful, things.
S: Personally, I do not agree with their contention.
S6: We must have more space for building new things and developing open countryside.

The Proper sequence should be: