Mendel crossed pure-breeding tall plants with pure-breeding…

Mendel crossed pure-breeding tall plants with pure-breeding short plants. He found that all of the F1 plants were tall. When these F1 plants were allowed to fertilize themselves, the F2 plants occurred in a ratio of 2.84 tall to 1 short. Which of the following is NOT a valid conclusion from these results?r

A recent study differentiated human stem cells from a male (…

A recent study differentiated human stem cells from a male (XY), female (XX) and cells from a sex-reversed DSD individual (XY born as female) and showed that the somatic cells produced by XX and XY are different from each other, and the cells of the sex-reversed individual are somewhere in the middle, closer to male than female.