Sentence Examples


  • The offspring of the virgin females are in most of these instances females; but among the bees and wasps parthenogenesis occurs normally and always results in the development of males, the " queen " insect laying either a fertilized or unfertilized egg at will.
  • There are species of gall-fly in which males are unknown, the unfertilized eggs always developing into females.
  • These unfertilized eggs develop directly, often in the uterus.
  • In Dictyota the unfertilized oosphere is found to be capable of undergoing a limited number of divisions, but the body thus formed appears to atrophy sooner or later.
  • 6, C) of laying eggs - necessarily unfertilized - which always give rise to males ("drones"), and, since the researches of J.