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. 1961 Sep 22;134(3482):835-6.
doi: 10.1126/science.134.3482.835.

Sign of taxis as a property of the genotype

J HIRSCH, L ERLENMEYER-KIMLING

Sign of taxis as a property of the genotype

J HIRSCH et al. Science. .

Abstract

Previous studies have assumed Drosophila to be negatively geotactic and found this to be the case. New methods of observation now yield a spectrum of geotactic behavior both positive and negative. Two-way selection produces races of animals performing in diametrically opposite fashion to the same stimulus conditions.

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