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 it mean when a shape is half shaded What is the genotype?
The individual has a certain phenotype/genotype. What does it mean if a figure is only half shaded in a pedigree chart? It means that the individual is a homozygous/a carrier. … When a gene is considered to be an autosomal gene, it means that it is not associated with one of the sex chromosomes.
What does the shading of an individual mean on a pedigree chart?
Shaded symbols mean an individual is affected by a condition, while an unshaded symbol means they are unaffected. A horizontal line between man and woman represents mating and resulting children are shown as offshoots to this line.
What do the colored squares represent in pedigree?
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 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 shaded means?
Shade is a subtle, sneering expression of contempt for or disgust with someone—sometimes verbal, and sometimes not.
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 represents generations in a pedigree?
A pedigree chart displays a family tree, and shows the members of the family who are affected by a genetic trait. … – a Roman Numeral, which stands for the generation in the family, – a Digit, which stands for the individual within the generation. (For instance, The female at the upper left is individual I-1.)
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).
Who do the squares and circles represent on a pedigree?
A pedigree results in the presentation of family information in the form of an easily readable chart. It can be simply called as a “family tree”. Pedigrees use a standardized set of symbols, squares represent males and circles represent females.