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Modern Genetic Analysis Chapter 17. Population and Evolutionary Genetics Variation and its Modulation
Table 17-5. Frequencies of Various Alleles at Three Enzyme-Coding Loci in Four Populations of Drosophila pseudoobscura

|  | POPULATION

Locus (enzyme encoding) | Allele | Berkeley | Mesa Verde | Austin | Bogotá

Malic dehydrogenase | A | 0.969 | 0.948 | 0.957 | 1.00
| B | 0.031 | 0.052 | 0.043 | 0.00
a -Amylase | A | 0.030 | 0.000 | 0.000 | 0.00
| B | 0.290 | 0.211 | 0.125 | 1.00
| C | 0.680 | 0.789 | 0.875 | 0.00
Xanthine dehydrogenase | A | 0.053 | 0.016 | 0.018 | 0.00
| B | 0.074 | 0.073 | 0.036 | 0.00
| C | 0.263 | 0.300 | 0.232 | 0.00
| D | 0.600 | 0.581 | 0.661 | 1.00
| E | 0.010 | 0.030 | 0.053 | 0.00

SOURCE:R. C. Lewontin, The Genetic Basis of Evolutionary Change.Columbia University Press, 1974.

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