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Question 1: What is myoglobin? Explain why increased diving ability should be correlated with specific types of replacement mutations of the gene encoding the protein myoglobin. What specific kinds of amino acid replacements are favored by positive selection when increased diving ability is favored? Explain how the maximum dive capability of an extinct whale species can beestimated.

Question 2: What is the general function of the protein prestin? Explain why a phylogenetic tree reconstructed using the characters of prestin amino acid sequences showed at first that the whales form a subgroup within the bats!

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Category:- Biology
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