If a woman with curly hair and a man with straight hair have a child with wavy hair, the gene for this characteristic of hair shows if a woman with curly hair and a man with straight hair have a child with wavy hair, the gene for this characteristic of hair shows incomplete dominance multiple alleles pleiotropy polygenic inheritance

The correct option is Incomplete dominance.

Explanation:

Incomplete dominance describes the situation in which the phenotype of heterozygous is different from that of their respective homozygous. It means that when both parents are homozygous for some feature, each expressing a particular phenotype, their heterozygous descendants have a phenotype that will be between the phenotypes of their parents. In the present case, the woman has curly hair ( dominant homozygous) and the man has straight hair (recessive homozygous), but the child have wavy hair (heterozygous), not curly nor straight.

geologic time scale (for gradpoint) =)