Which one of the following statements is true about sexual differentiation and sex determination?
C A Sexual differentiation includes genes that are present that signal developmental pathways whereby the sexes are generated. B. Sex determination is the
complex set of responses to those genetic signals giving rise to the appearance of the organism. C. The Protenor XX/XO mode of sexual differentiation produces a 1:1 sex ratio that controls the secondary sex determination pathways that give rise to the
appearance of the organism.
D. Sexual differentiation is the response of cells, tissues, and organs to signals provided by the genetic mechanisms of sex determination.
E. While the Y-chromosome in humans is involved in sex determination, the Y-chromosome is not involved in sexual differentiation.