# What does a double horizontal line represent in a pedigree?

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Inbreeding in Pedigrees. Consanguinious matings are those between related individuals (those that share a common ancestor), and are indicated by double lines between pedigree symbols. The relatedness (r) of two individuals is the fraction of alleles they share at all loci.

## What is the horizontal line in a pedigree called?

Sibling Line: Horizontal line above the offspring and connected by vertical lines. Example: brother and sister siblings.

## What does a line through a pedigree mean?

A dashed offspring line indicates the individual was adopted into the family, and a solid line indicates the individual was adopted out of the family. Adopted into family male. Adopted out of family male. Deceased: symbol with a diagonal line. Deceased male.

## How do you show twins on a pedigree?

If twins are identical, you should see a horizontal line connecting the two diagonal lines that lead down to the gender symbols. Some pedigree charts instead display a horizontal line connecting the two gender symbols to create a triangle shape. Relationships in a pedigree are shown as a series of lines.

## What does a horizontal line represent?

In more simple terms, a horizontal line on any chart is where the y-axis values are equal. If it has been drawn to show a series of highs in the data, a data point moving above the horizontal line would indicate a rise in the y-axis value over recent values in the data sample.

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## What does the horizontal line between the male and the female represent?

A horizontal line connecting a male and female represents a marriage. A vertical line and a bracket connect the parents to their children. A half-shaded circle or square indicates that a person is a carrier of the trait.

## 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.