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. The horizontal line that connects a circle and a square represents a marriage.
What do the circles represent on a pedigree quizlet?
What do the circles represent on a pedigree? A circle represents a femal. How do you know a pedigree shows a recessive or dominant trait? The trait is recessive, if the trait skips a generation.
What does a filled-in shape mean on a pedigree?
Inheritance of a trait through generations can be shown visually using a pedigree, such as is pictured in Figure 3. Square shapes represent males; circles represent females. Filled-in shapes are individuals that have whatever trait is being shown in the pedigree.
What is the purpose of a pedigree?
A pedigree can be used to determine disease inheritance patterns within a family. Standard pedigree nomenclature. Common symbols are used to draw a pedigree (family tree). A pedigree shows relationships between family members and patterns of inheritance for certain traits and diseases.
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 is a half shaded circle called?
What is a half shaded circle called? In geometry, the half circle is referred to as the semicircle.