Nasa article "Earths inconstant magnetic field"summary

Por qué crees que los huevos con cáscara se llaman amnióticos?

When are the centromeres broken in meiosis?

3. in the fruit fly, recessive mutation brown, b, causes brown color of the eye and absence of red pigment. recessive mutation p of another independent gene causes purple color of the eye and absence of brown pigment. the cross of a brown-eyed female and purple-eyed male produced wild type eyes. what will be the colors and their ratio in f2?