Why is pedigree analysis done in the study of human genetics? State the conclusions that can be drawn from it.

Solution

Pedigree analysis is done to study the human genetics because it provides a strong tool, which can be utilised to trace the inheritance of a specific trait, abnormality or disease. Since certain disorders are inheritable and also depends on the genetics of the families and the genes inherited from them thus pedigree analysis is done to trace such inheritance patterns.

The conclusions that can be drawn from the pedigree analysis are:

i. The pattern of inheritance and tracing of Mendelian disorders.
ii. Whether the trait in question is dominant or recessive.
iii. Whether the trait is linked to the sex chromosomes or autosomes.

Some More Questions From Principles of Inheritance and Variation Chapter

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Principles Of Inheritance And Variation

Why is pedigree analysis done in the study of human genetics? State the conclusions that can be drawn from it.

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