What does a double horizontal line represent in a pedigree?

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.
Family heirloom