Freckles are a dominant characteristic, that is, they are expressed by people who have dominant and heterozygous homozygous alleles.
In the case of the child shown in the question above, the mother has freckles and is heterozygous, which means that she has recessive and dominant alleles (Aa) for this characteristic, while the father does not have freckles which means that he only has homozygous alleles. and recessive (aa) for this characteristic. If the child was born without freckles it means that she received a recessive allele from the mother and a recessive allele from the father (a + a), in this case, the child is homozygous recessive (aa).
