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.
What does a vertical line represent in a pedigree chart?
The pedigree chart displays the lines of descent among close natural relatives. Females are represented by circles, males by squares and if the sex is unknown a diamond (⋄) is used (see Fig. P37). The same but smaller symbols or by a vertical or slanted line indicates abortion or still birth over the symbol.
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 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).
What does shaded represent on a pedigree?
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. A black X. represents. death of the individual.