A parthenogenetic ovum gives off one polar body-though without reduction in the number of chromosomes-and then proceeds by asexual multiplication or ordinary cell division to build up a body.
"Herbert Spencer"
J. Arthur Thomson
How the males are formed-for of course males are eventually produced by the parthenogenetic females-we do not know.
"Darwin and Modern Science"
A.C. Seward and Others
The chief difference in this case then is that the reduction in the male to the N or simplex condition takes place in two stages, one in the parthenogenetic ovum, one in the gametes of the mature male.
"Hormones and Heredity"
J. T. Cunningham