Scientists have isolated the gene responsible for temperature-controlled sex determination in turtles. With this gene blocked, over 80% of turtles incubated at the (usually male-producing) temperature of 26C shifted to female. Females usually only develop when eggs are incubated at 32C

See the source article by following the link below:
Scientists have isolated the gene responsible for temperature-controlled sex determination in turtles. With this gene blocked, over 80% of turtles incubated at the (usually male-producing) temperature of 26C shifted to female. Females usually only develop when eggs are incubated at 32C