The drones are derived from unfertilized eggs; yet their instincts are those of the male, not of the female.
Often the unfertilized ovum is carried away with it, but the two things do not necessarily happen at the same time.
Conklin has established the existence of a definite structure in the unfertilized eggs of Ascidians, Amphioxus, and many molluscs.
After fertilization the flower droops, to be out of the way of the bees in their visits to the unfertilized blossoms.
Better opportunities were offered when a method was discovered which induced the development of the unfertilized eggs of the frog.
Parthenogenesis exists; the unfertilized eggs produced only males (Edmunds, 1954).
Parthenogenesis occurs; the unfertilized eggs produced only males (Flock, 1941).
You quicken an unfertilized egg in vitro and you get a little ball of fur and bone and skin and stem-cells.
Conjugating paramecia, fertilized and unfertilized starfish eggs.
The difference of appearance between fertilized and unfertilized ova treated by the method will demonstrate its utility.