Comparisons of the Genes That Code for Lysozyme and the Amino

question 89

Multiple Choice

Comparisons of the genes that code for lysozyme and the amino acid sequence of the enzyme from a number of organisms revealed that

• A) the rate of nonsynonymous mutations is higher than that of synonymous mutations.
• B) a common recent ancestor is necessary for organisms to develop very similar adaptations.
• C) bovine (cattle) lysozyme was very similar overall to langur lysozyme.
• 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.

Identify major sources of background radiation and their impact.

Recognize the symptoms and causes of radiation sickness.

Identify different groups of seedless vascular plants and their characteristics.

Understand the process and significance of alternation of generations in the life cycle of land plants.

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