-Based on the phylogeny figure, HIV-1 (strain 1) is most closely related to
A) SIV-sooty mangeby monkey.
B) SIV-chimpanzee (strain 1).
C) HIV-2 (strain 2).
D) SIV-mandrill.
E) HIV-2 (strain 1).

Question

-Based on the phylogeny figure, HIV-1 (strain 1) is most closely related to
A) SIV-sooty mangeby monkey. 
B) SIV-chimpanzee (strain 1). 
C) HIV-2 (strain 2). 
D) SIV-mandrill. 
E) HIV-2 (strain 1).

Quizplus · Accepted Answer

HIV-1 (strain 1) is most closely related to SIV-chimpanzee (strain 1) based on phylogenetic analysis, which shows that the genetic material of HIV-1 is most similar to that of the SIV found in chimpanzees, indicating a common ancestor or a direct transmission event between species.

-Based on the Phylogeny Figure, HIV-1 (Strain 1) Is Most