A dominantly inherited trait affects a child and his grandmother, but neither parent. This best illustrates which of the following principles?

intext citation, references 6.A dominantly inherited trait affects a child and his grandmother, but neither parent. This best illustrates which of the following principles?a. Variable expressivityb. New mutationc. Somatic mosaicismd. Nonpenetrancee. Germline mosaicism 7.Two parents with autosomal recessive albinism have a child who does not have albinism. This is best explained by:a. An incorrect diagnosis in one parentb. Misattributed paternityc. Genetic heterogeneityd. Reversion of one of the mutant alleles to wild typee. Mosaicism in one parent