The percentage of offspring from a cross between an animal that is heterozygous for the dominant trait of having horns and an animal that is homozygous recessive and has no horns is 50%.
A punnet square is a graphical representation used to determine the probability of an offspring expressing a particular genotype.
According to this question, an animal that is heterozygous for the dominant trait of having horns (Hh) is crossed with an animal that is homozygous recessive and has no horns (hh).
The offsprings of this cross is as follows:
Therefore, the percentage of offspring from a cross between an animal that is heterozygous for the dominant trait of having horns and an animal that is homozygous recessive and has no horns is 50%.
Learn more about punnet square at: https://brainly.com/question/20260008
#SPJ1