What does a white square represent in a pedigree?

In this family pedigree, black squares indicate the presence of a particular trait in a male, and white squares represent males without the trait. White circles are females.

What does a white square mean in a pedigree?

In a pedigree, a circle represents a female, and a square represents a male. A filled-in circle or square shows that the individual has the trait being studied.

What does a triangle mean in terms of a pedigree?

A triangle is used for any pregnancy not carried to term. … Pregnancy (P), Stillbirth (SB), Spontaneous abortion (SAB), Termination of pregnancy (TOP), Ectopic pregnancy (ECT).

How many generations are shown in this pedigree?

(7.4) Pedigree flashcards

How many generations are shown on this pedigree?, 3 generations are shown.
Which individual is a female affected by the trait of interest?, I-2 is the affected female.
Which individual is a male affected by the trail of interest?, III-2 is the affected male.

What does it mean if the pedigree is shaded?

A half-shaded circle or square indicates that a person is a carrier of the trait. A completely shaded circle or square indicates that a person expresses the trait. A circle or square that is not shaded indicates that a person neither expresses the trait nor is a carrier of the trait.

What does P mean on a pedigree chart?

P. Comments. Assign gender by phenotype.

Are circles male or female?

The use of shapes as gender symbols may have originated from kinship diagrams in anthropology, where a circle represents a female and a triangle represents a male.

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Family heirloom