Give 4 signals/symbols of pedigree analysis.
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Scientists have devised another approach, called pedigree analysis, to study the inheritance of genes in humans. ... A series of symbols are used to represent different aspects of a pedigree. ... For those traits exhibiting dominant gene action:.
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Explanation:
▶ pedigree analysis is the study of transmission of particular traits over the generations for finding out the possibility of their occurrence in the future generation...
▶importance
☀ it is used to know the possibility of expressive or recessive allele which may cause genetic disorder
☀ it shows the origin of trait and inheritance pattern of that trait in a family
☀ it predict the harmful effect of marriage between close relatives
☀ it extenously used in medical research ..
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