The nurse teaches a class that which of the following is the first gender change to occur in the embryo?

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Differing male/female developmental changes in the mesonephric and paramesonephric ducts include the development of dominance in one set of the ducts.Mesonephric ducts become dominant in males; paramesonephric ducts become dominant in females.This is the first gender change that occurs.Gender is determined by the presence of an XX or XY pair of chromosomes; none are destroyed.External genitalia are usually not visible before 12 weeks of gestation,when androgens begin to stimulate their growth.Spermatogenesis occurs in puberty in boys; oogenesis begins sometime after 10 weeks of gestation when the ovaries begin to develop.

The Nurse Teaches a Class That Which of the Following