Based on the Results from Phylogenetic Studies of HIV (And

question 7

Multiple Choice

Based on the results from phylogenetic studies of HIV (and assuming a molecular clock) , it has been determined that HIV entered the human population _______ years before it became a global pandemic.

• A) less than 5
• B) about 10
• C) about 20
• D) about 35
• E) at least 50

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