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Question
What is the pedigree analysis? Suggest how such an analysis can be useful?
What is the pedigree analysis? Suggest how such an analysis can be useful?
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Solution
A pedigree is a chart that shows genetic connections among individuals. An analysis of the inheritance of a trait over several generations of a family is called pedigree analysis.
Uses:
(i) It shows the origin of a trait and the flow of that trait in a family.
(ii) It is used to know the possibility of an expressive or recessive allele that may cause a genetic disorder, e.g., color blindness.
(iii) It predicts the harmful effects of marriage between close relatives.
(iv) It helps in genetic counseling to avoid disorders in children.
A pedigree is a chart that shows genetic connections among individuals. An analysis of the inheritance of a trait over several generations of a family is called pedigree analysis.
Uses:
(i) It shows the origin of a trait and the flow of that trait in a family.
(ii) It is used to know the possibility of an expressive or recessive allele that may cause a genetic disorder, e.g., color blindness.
(iii) It predicts the harmful effects of marriage between close relatives.
(iv) It helps in genetic counseling to avoid disorders in children.
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