Showing papers by "University of Patras published in 1971"
TL;DR: La localisation des mutations récessives létales produites par le diéthyl-sulphate sur le second chromosome de the Drosophile, a montré that ce mutagène possède une action remarquablement spécifique.
Abstract: La localisation des mutations recessives letales produites par le diethyl-sulphate sur le second chromosome de la Drosophile, a montre que ce mutagene possede une action remarquablement specifique. Ainsi toutes les mutations se localisent dans trois regions. D'autre part, l'analyse par « le test d'allelisme » de 38 mutations letales provenant independamment l'une de l'autre a permis de distinguer 3 groupes de letaux: letaux identiques, non-identiques et « partiellement » identiques.
3 citations
TL;DR: The origin of the Moon's mascons could be endogenous or exogenous as mentioned in this paper, that is, their formation could be the result of differentiation caused by local melting due to radioactive heating or the resulting impact by large meteoritic rocks.
Abstract: THE processes that produced the mascons took place about one aeon (109 yr) after the formation of the chief part of the Moon and the gross potential of the original body was, of course, changed by these processes. The origin of the mascons could be endogenous or exogenous, that is, their formation could be the result of differentiation caused by local melting due to radioactive heating or the result of impact by large meteoritic rocks.