It is shown, that in early terms after irradiating of male mice of lines CBA and C57Bl/6 in a sublethal dose (4 Gy) in reaction of preference-avoiding lose olfactory ability to distinguish the genotype of flying secretions of female mice and to distinguish flying secretions of female mice from secretions of male mice. Irradiated male mice not only preserve, but also raise the attractiveness to chemosignals of syngenetic intact male mice.
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