In Both Insects and Mammals, Most ORNs Express Only One

question 13

Essay

In both insects and mammals, most ORNs express only one specific odorant receptor, and the axons of ORNs that express the same odorant receptor project to the same glomerulus. Is this similarity in organization likely to be due to shared ancestry or to convergent evolution? Briefly explain your reasoning.

---

Definitions:

Small Company

A business with a limited number of employees and relatively low volume of sales compared to larger enterprises.

Porter's Generic Strategies

A framework developed by economist Michael Porter that outlines three potential strategies—cost leadership, differentiation, and focus—for achieving competitive advantage.

Focused Differentiation

A business strategy where a company targets a specific market segment with unique products or services that stand out from competitors.

Service Guarantee

A promise made to customers that a service will meet certain quality and satisfaction standards, often with an assurance of compensation for failure to meet these standards.