Bette Korber created an evolutionary tree for HIV to infer the likely sequence of the last common ancestor for HIV and SIV. Which of the following genetic sequences did she use to construct her tree? Recent SIV samples Recent HIV samples The first known HIV patient The first known SIV primate Which of the following evolutionary mechanisms is required to establish a molecular clock? Migration Natural selection Mutation In the lab you just completed, what does a steeper slope of the best-fit line of genetic differences versus generation indicate? Fast infection rate of the virus. Slow infection rate of the virus. Rapid divergence between virion populations. Slow divergence between virion populations. Solution 5. Recent HIV samples Explanation: Bette Korbe used HIV samples of last 30 years approximately to calculate the ancestral form of HIV that infected humans. The virus came from chimps to humans. The age of virus was determined based on their mutation..

1. Bette Korber created an evolutionary tree for HIV to infer the likely sequence of the last
common ancestor for HIV and SIV. Which of the following genetic sequences did she use to
construct her tree? Recent SIV samples Recent HIV samples The first known HIV patient The
first known SIV primate Which of the following evolutionary mechanisms is required to
establish a molecular clock? Migration Natural selection Mutation In the lab you just
completed, what does a steeper slope of the best-fit line of genetic differences versus generation
indicate? Fast infection rate of the virus. Slow infection rate of the virus. Rapid divergence
between virion populations. Slow divergence between virion populations.
Solution
5. Recent HIV samples
Explanation: Bette Korbe used HIV samples of last 30 years approximately to calculate the
ancestral form of HIV that infected humans. The virus came from chimps to humans. The age of
virus was determined based on their mutation.