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.
What does a square represent in a pedigree chart?
A CIRCLE represents a FEMALE. A SQUARE represents a MALE. A horizontal line represents marriage. A vertical line and brackets connects parents to children Page 4 Pedigree Charts • How many children are there?
What do shades circles and squares represent in a pedigree?
A circle represents a female. … A half-shaded circle or square indicates that a person is a carrier of the trait. 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.
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).
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.|
Why do you need to use a Punnett square with a pedigree?
While Punnett squares provide information about offspring, pedigrees are diagrams that allow individuals to visualize patterns of inheritance throughout their family history. Pedigrees utilize symbols to denote individuals in a family. Squares represent males, and circles represent females.
What is the difference indicated by squares and circles?
It shows the inheritance of attached ear-lobes as opposed to the free ones. The squares represent the male individuals and circles represent the female individuals.