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:

External Incentives

External factors or rewards that motivate behavior, such as money, grades, or social recognition.

Secondary Drives

Learned drives that are not directly related to biological needs but arise through association with those needs, such as the desire for money or social approval.

Learned

Acquired knowledge or behavior patterns through experience, observation, or being taught.

Experience

The knowledge or practical wisdom gained from direct participation in events or activities.