Variations of Homologous Genes That Result in Differences in Structure

question 66

Multiple Choice

Variations of homologous genes that result in differences in structure and function are

• A) alleles.
• B) loci.
• C) autosomes.
• D) dominant.
• E) linked.

---

Definitions:

Blood Pressure

The force exerted by circulating blood on the walls of blood vessels, a critical indicator of cardiovascular health.

Preload

The degree of stretch of cardiac muscle fibers at the end of diastole, affecting the force of contraction.

Cardiac Output

The volume of blood the heart pumps per minute, a critical measure of heart function and body's demand for oxygen.

Sympathetic Nerves

Part of the autonomic nervous system, these nerves prepare the body for stress-related activities, often described as the "fight or flight" response.