That process serves to inactivate about 85% of a certain chromosome in individuals with this determination, whose phenotypic qualities are seen in individuals with Klinefelter's syndrome.
In Drosophila, one molecular basis for this characteristic is the production of Sxl protein, which allows for production of the Tra molecule that blocks an intron in the DSX gene, yielding a truncated Dsx protein. In cucumbers, one can make this determination by the presence of higher levels of ethylene promoted by the F/f gene. In humans, those with this characteristic produce a large silencing Xist RNA early in development to carry out the lyonization process. That process serves to inactivate about 85% of a certain chromosome in individuals with this determination, whose phenotypic qualities are seen in individuals with Klinefelter's syndrome. For 10 points, name this characteristic possessed by humans with two X chromosomes.
In Drosophila, one molecular basis for this characteristic is the production of Sxl protein, which allows for production of the Tra molecule that blocks an intron in the DSX gene, yielding a truncated Dsx protein.
{femaleness} [prompt on “{sex determination}”, “{gender determination}”, or the like accept things that {suggest} that {thing we} are {talking} about is {female}]