10. What is pedigree analysis? Suggest how such an analysis, can be useful.
The analysis of inherited traits in several generations of a family is called the pedigree analysis. The inheritance of a particular trait is represented in a family tree over several generations. It is used to trace the inheritance of particular trait, abnormality and disease. By pedigree analysis, genetic counsellors can help in preventing certain genetic disorders like haemophilia, sickle cell anaemia in the future generation of that family.