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

question 51

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 would be the best choice on which to base the phylogeny?

• A) genes involved in chitin synthesis
• B) collagen genes
• C) genes involved in directing segmentation development
• D) genes involved in eye-lens synthesis

---

Definitions:

ECG

Electrocardiography, a medical test that measures the electrical activity of the heart to assess its health and function.

Lead Arrangement

Reference to the specific configuration or placement of electrodes on the body in medical procedures, particularly electrocardiography (ECG).

Electrodes

Conductive materials used to establish electrical contact with a nonmetallic part of a circuit.

ECG

A medical examination analyzing the heart's electric functionality to detect assorted cardiac disorders.