A Researcher Is Trying to Construct a Molecular-Based Phylogeny of the Entire

question 38

Multiple Choice

A researcher is trying to construct a molecular-based phylogeny of the entire animal kingdom. Assuming that none of the following genes are absolutely conserved, which of the following genes would be the best choice on which to base the phylogeny?

• A) genes encoding enzymes involved in photosynthesis
• B) genes encoding enzymes involved in collagen synthesis
• C) genes that direct development of body axes
• D) genes involved in gastrulation

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Definitions:

Markup

The sum included in the purchase price of products to account for overhead expenses and gain profit.

Inequalities

Mathematical statements that compare two expressions using inequality symbols, showing if one is less than, greater than, or not equal to the other.

Equivalent

Two expressions that have the same value or represent the same mathematical quantity.

Free-Falling Object

An object that is falling under the sole influence of gravity, with no forces like air resistance acting upon it.