Suppose your entire herd of cows is polled, what genotype(s) can your bulls have to guarantee that you never have a calf with horns? Is this possible? Hereford cattle can be naturally “polled,” which means they do not have horns. This trait is dominant (P) over cattle with horns (p).

Describe the change in phase and temperature as water moves from the oceans to the atmosphere and then returns to earth again as rain. a) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature decreases b) evaporation : temperature increases; condensation : temperature decreases; precipitation (rain) : temperature increases c) evaporation : temperature decreases; condensation : temperature decreases; precipitation (rain) : temperature decreases d) evaporation : temperature increases; condensation : temperature increases; precipitation (rain) : temperature decreases