PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a chart that tracks which members of a family have a particular trait
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a geneticist who studies the inheritance of traits in humans
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a picture of all the chromosomes in a cell
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an allele passed from parent to child on a sex chromosome
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Detailed explanation-1: -Definition. A pedigree, as related to genetics, is a chart that diagrams the inheritance of a trait or health condition through generations of a family. The pedigree particularly shows the relationships among family members and, when the information is available, indicates which individuals have a trait(s) of interest.
Detailed explanation-2: -A pedigree shows relationships between family members and indicates which individuals have certain genetic pathogenic variants, traits, and diseases within a family as well as vital status. A pedigree can be used to determine disease inheritance patterns within a family. Standard pedigree nomenclature.
Detailed explanation-3: -It can be simply called as a “family tree". Pedigrees use a standardized set of symbols, squares represent males and circles represent females.
Detailed explanation-4: -Pedigrees are used to analyze the pattern of inheritance of a particular trait throughout a family. Pedigrees show the presence or absence of a trait as it relates to the relationship among parents, offspring, and siblings.
Detailed explanation-5: -(A) The trait expressed in the pedigree chart is ‘Dominant’.