sex determination n.
The determination of the sex of a fetus by identifying sex chromatin in amniotic fluid obtained by amniocentesis.
How can we reconcile the facts of hermaphroditism with the chromosome theory of sex determination?
In his latest paper Wilson ('06) makes a variety of suggestions as to sex determination.
As Sagitta is hermaphrodite, there would appear to be no question of sex determination by any special chromatic element.
From the standpoint of sex determination, we have in Tenebrio molitor the most interesting of the forms considered in this paper.
McClung was the first to recognize the importance of this fact for the problem of sex determination.
The cytological basis of sex determination becomes only a special case of the cytological basis of Mendelian heredity.