You Are Studying the Source of a New Virus That

question 34

Essay

You are studying the source of a new virus that has recently infected humans. You suspect that the virus was transferred from other primates (they exhibit a similar infection), specifically, chimpanzees, gorillas, or orangutans. You sample blood from several infected humans and sequence some viral genes. You then build a phylogenetic tree with the human sequences and all the known strains from each primate. Draw a hypothetical phylogenetic tree that would suggest that the virus came from gorillas and that this transfer occurred twice independently. Label chimpanzee sequences (c), gorilla (g), orangutans (o), and humans (h).

---

Definitions:

Customer-Generated Franchising System

A customer-generated franchising system is a business expansion model where customers or users help to develop or promote franchised outlets, potentially influenced by their loyalty or satisfaction with the brand.

Agent-Sponsored Wholesale Franchise System

A franchising model combining agent wholesaling and franchising to expand distribution and reach of products.

Intensive Distribution

A distribution strategy that aims to provide widespread availability of a product by stocking it in as many outlets as possible.

Extensive Distribution

A distribution strategy that places a product in as many outlets as possible.