You asked: What does a triangle mean in terms of a pedigree?

A triangle is used for any pregnancy not carried to term. Include gestational age, or estimated date of delivery (EDD) for all pregnancies. Pregnancy (P), Stillbirth (SB), Spontaneous abortion (SAB), Termination of pregnancy (TOP), Ectopic pregnancy (ECT).

What are the parts of a pedigree?

The Components of a Pedigree:



Squares are used to indicate males in a family. Circles are used to indicate females. If the individual is “affected” by the trait (dominant or recessive) we darken the shape. A line between a male and a female indicates a marriage or union.

What does a diagonal line in a pedigree mean?

A picture of your family’s history is called a pedigree. Here is a pedigree. Females are circles. Males are squares. A diagonal line through a circle or square means the person has died.

How is a person with a disorder represented on a pedigree?

In pedigrees, an autosomal recessive disorder is revealed by the appearance of the phenotype in the male and female progeny of unaffected individuals.

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 a square represent 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.

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What are the three types of pedigrees?

The modes of inheritance are autosomal dominant , autosomal recessive, and X-linked.

Family heirloom