Si se cruza una vaca de piel con manchas heterocigota, sin cuernos, con un toro de piel con manchas homocigota con cuernos heterocigota.
La ausencia de manchas y de cuernos se presenta en estado recesivo.
A. Cuál es la probabilidad de obtener un ternero sin manchas con cuernos?
B. Cuál es la posibilidad de obtener un ternero con manchas y cuernos?
C. Cuál es la posibilidad de obtener un ternero sin manchas ni cuernos?
D. Cuál es la posibilidad de obtener un ternero con manchas sin cuernos?

The answers to these questions are the following:

A- The chances to have a spotless animal with horns is 0 % because the father is a spotted animal (homozygous) and this trait is dominant

B- The chances to have a spotted animal with horns is 75 % because the father has horns (heterozygous) and this trait is dominant

C- The chances to have a spotless animal without horns is 0 % because the father is a spotted animal (homozygous) and this trait is dominant

D-The chances to have a spotted animal without horns is 50% because the father has horns (heterozygous) and this trait is dominant

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.

it's a.true. i'm kind of smart.