It represents a child.
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No, a circle on a pedigree typically represents a female. A square is used to represent a male in a pedigree chart.
In a Pedigree the circle represents a female. Though on other sites it says other wise. Any other answer is scientifically incorrect.
A filled circle in a pedigree represents an individual who has the specific trait being studied (e.g., a genetic disorder or a specific characteristic). This individual carries at least one copy of the trait.
circles
A half-shaded circle or square in a pedigree indicates that the individual is a carrier of a certain genetic trait. This means they have one copy of the gene for the trait but do not express the trait themselves.