Sexual Differentiation of the Embryo Is Normally Determined by

question 35

Multiple Choice

Sexual differentiation of the embryo is normally determined by

• A)the number of chromosomes,with males having 22 pairs and females having an extra pair of XX chromosomes.
• B)the presence of two X chromosomes,which causes the primordial testes to degrade.
• C)the presence of one Y chromosome,which causes the primordial ovaries to degrade.
• D)the presence of the Y chromosome,which directs the undifferentiated gonads to develop into testes (when there is one X chromosome present as well).
• E)hormones produced by the placenta.

---

Definitions:

Polysubstance

The use of multiple drugs simultaneously or at different times within a short period, often with the intention of enhancing or counteracting the effects of another substance.

Bulimia Nervosa

An eating disorder marked by binge eating followed by extreme behaviors to avoid weight gain, such as self-induced vomiting.

Hispanic

Relating to, characterized by, or derived from the people, culture, or language of Spain, Latin America, and individuals of Spanish or Latin American origin in the United States.

African American

A term referring to individuals belonging to or descended from the Black racial groups of Africa.