Which of the following is considered the closest relative to HIV-1? Chimp SIV Ba

Question

Which of the following is considered the closest relative to HIV-1? Chimp SIV Baboon SIV Green monkey SIV Polio HIV-2 Hooper hypothesized that HIV-1 first entered humans in which decade? 1920s 1930s 1940s 1950s 1960s In Exercise 1 (Molecular Evolution), how would you describe the change in variation of the virus population after 1000 generations? There is more variation after 1000 generations There is less variation after 1000 generations Amount of variation is about the same after 1000 generations

Explanation / Answer

Q1.Correct answer is:Chimp SIV

Reason:Chimpanzee SIV known as SIVcpz , is the closest relative to HIV-1.

Q2.Correct answer is:1950s

Reason: As per Hooper, HIV-1 entered humans in 1950s via oral polio vaccines that were given to children in central africa.

Q3.Correct answer is :There is more variation after 1000 generations.

Reason:Variation in viral genome occur very slowly in a population but that variation increases significantly after 100-1000 viral generations.

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