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Figure 3


Regression coefficients and difference spectrum for classifying virgin or mated queen bees, and drone semen spectrum. The regression coefficients multiplied by the bee spectra determine whether the bees are classed as virgin or mated. Thus, wavelengths with larger positive or negative regression coefficients indicate where major differences in mated and virgin bees exist. The difference spectrum is the mean mated queen spectrum minus the mean virgin queen spectrum from Figure 1.

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