Answer:
Proband
Explanation:
In medical genetics, a proband is used to refer to the first person or individual in a pedigree whose phenotype is first brought out to attention of a medical researcher or the first affected family member to seek medical attention for a genetic disorder.
A proband can be male or female.
Proposito will refer to the male proband and it is denoted by a shaded square whereas proposita is a female proband denoted by a shaded circle.
