The Genes That Code for the Enzyme Lysozyme from a Number

question 79

Multiple Choice

The genes that code for the enzyme lysozyme from a number of organisms whose diets comprise mostly leaves and grass were sequenced.Comparisons of the gene sequences revealed that

• A) the rate of nonsynonymous mutations is higher than that of synonymous mutations in most lineages.
• B) a recent common ancestor is necessary for organisms to develop very similar adaptations.
• C) the sequences of bovine (cattle) lysozyme and langur lysozyme are highly divergent.
• D) the number of changes in lysozyme uniquely shared by cattle, langur, and the hoatzin was high.
• E) none of the changes in lysozyme were adaptive.

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