HEREDITY
THE PEDIGREE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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he or she is affected
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he or she is unaffected
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he or she is a carrier only
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Detailed explanation-1: -A shaded circle or square means the individual is affected with the genetic trait being referenced.
Detailed explanation-2: -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.
Detailed explanation-3: -In the pedigree chart, a male and a female are represented with a square and a circle respectively. An affected female is represented by a completely shaded circle.
Detailed explanation-4: -A circle represents a female. A square represents a male. 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.
Detailed explanation-5: -In human genetics, pedigree diagrams are utilized to trace the inheritance of a specific trait, abnormality, or disease. A male is represented by a square or the symbol ♂, a female by a circle or the symbol ♀.