What is pedigree analysis? Suggest how such an analysis can be useful?

Solution

Pedigree Analysis is the study of family history for the inheritance and distribution of certain genetic traits in human beings. Pedigree analysis involves analysis of traits in generation of the family. In such analysis a pedigree tree is created which represents the family generations and inheritance .

Pedigree analysis can be useful in the following ways -:
1. It is used by the genetic counsellors to inform couples about the possibility of having children with genetic defects.
2. It is used to analyse the inheritance pattern of a particular trait.
3. It enables one to track and trace traits responsible for diseases and abnormalities.

Some More Questions From Principles of Inheritance and Variation Chapter

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Principles Of Inheritance And Variation

What is pedigree analysis? Suggest how such an analysis can be useful?

Some More Questions From Principles of Inheritance and Variation Chapter

Write down Mendel’s dihybrid Phenotypic ratio

Who were the rediscoverers of Mendelism ?

What are the real determinants of what an organism will become ?

What is the unique feature of F1 generation ?

What will be the genetic make up of an organism which suffers from sickle cell anaemia ?

What do the symbols square and circle in a pedigree chart indicate ?

Define heterogamy. Give an example.

How many chromosomes are found in human cells ?

Why is male Drosophila regarded as heterogametic ?

What term is used for the two chromatids resulting from the interchange of segments during crossing over ?

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