Greig cephalopolysyndactyly, a developmental disorder determined by a dominant allele, can affect the hands, feet, head and/or face. In one family, the mother had fused fingers on both hands while her daughter not only had fused fingers but also developed malformations in her toes and skull. This outcome is explained by ______.

Respuesta :

This outcome is explained by variable expressivity. This feature determines the level of expression of a genotype.

What is variable expressivity?

Variable expressivity is an intrinsic feature that determines the expression level of a given genotype.

In this case, variable expressivity determines the level of expression of malformations during development.

Variable expressivity is a characteristic associated with the plasticity level of a particular phenotypic trait in an environment.

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