Is it possible for an XY embryo to develop as a female if the SRY gene on the Y chromosome is not present?
In humans, yes . By default, humans are female. A functional SRY gene stimulates the body to produce male characteristics that override the underlying female pattern. If t…he SRY gene is absent (or, as sometimes happens, mutated) an individual who is chromosomally XY will develop as a female. This is one cause of Swyer syndrome. ( Full Answer )