Chapter 16.7, Problem 2MC

Summary Introduction

To determine:

The conclusions that researchers made based on the relationships.

Concept introduction:

SIV is known as simian immunodeficiency virus. They typically cause infection in apes and monkeys, but the infected animals do not show symptoms. The scientists learned that one of the major types of HIV, HIV-2 originated from the SIV in early $\text{1990s}$ and in late $\text{1990s}$ a team of researchers reported similarities between HIV-1 and SIV cpz.