Respuesta :
Question 3 A girl inherited the dominant trait of dimples but her sister did not because both parents had different Chromosomes for dimples
Based on the fact that the girl inherited the dominant trait of dimples but her sister did not, it means both parents had different genotypes for dimples.
What is a dominant trait?
A dominant trait is a trait that always appear on every generation.
When the alleles for a trait are the same, the genotype is said to be h0m0zygous.
If the alleles for a trait are different, the genotype of the offspring is said to heterozygous.
Since the girl inherited the dominant trait of dimples but her sister did not, it means both parents had different genotypes for dimples.
Learn more dominant traits at: https://brainly.com/question/983987