First, we designate the genes and the characteristics they cause:
F1: normal ears
F2: floppy ears
If the parents have the same genotype (F1F2) and the F1 allele is dominant over the F2 allele, we can draw the punnet chart as follows:
The phenotypes of the offspring would be as follows:
F1F1: normal ears
F1F2: normal ears
F2F2: floppy ears
Therefore, the parents can have offspring with floppy and normal ears because they are heterozygous for the trait.