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

A B
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