Morphogens like bicoid often have a gradient that is considerably less precise than the final read-out in the embryo (for instance the precise expression of Engrailed and Wingless at the cell-by-cell level). Discuss how the segmentation pathway is able to handle the variations in bicoid gradients to establish the precise pattern of expression seen in the expression of even-skipped.

Mike wants to negatively charge a small rubber ball. which of these methods would successfully charge the ball? a) heating the ball in boiling water b) running the ball over a strong magnet c) rubbing the ball back and forth on carpet d) dropping the ball from a tall bulding submit hint forces in nature (s8p5.b) conductors and insulators id: 10402 hint electrons must be transferred.