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Figure 20.20 Extrapolating Backward in Time Using the Molecular Clock Indicates That

Question 32

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Figure 20.20 Extrapolating backward in time using the molecular clock indicates that the HIV-1 M strain originated around A) 1920. B) 1930. C) 1950. D) 1960. Figure 20.20
Extrapolating backward in time using the molecular clock indicates that the HIV-1 M strain originated around


A) 1920.
B) 1930.
C) 1950.
D) 1960.

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