Final answer:
Myotonic goats, also known as fainting goats, undergo temporary paralysis when frightened due to a genetic condition called myotonia.
Step-by-step explanation:
The breed of goat that undergoes temporary paralysis when frightened is the Myotonic goat.
Myotonic goats, also known as fainting goats, have a genetic condition called myotonia where their muscles temporarily stiffen or lock up when they are startled or frightened. This causes them to fall over and appear as if they are paralyzed for a short period of time.
During a startle response, the myotonia affects the muscles, causing them to contract and remain locked for a few seconds to a few minutes, after which the goat is able to move normally again.