What is
pedigree analysis? Suggest how such an analysis, can be useful.
What is pedigree analysis? Suggest how such an analysis, can be useful.
Pedigree
analysis is a record of occurrence of a trait in several generations
of a family. It is based on the fact that certain characteristic
features are heritable in a family, for example, eye colour, skin
colour, hair form and colour, and other facial characteristics. Along
with these features, there are other genetic disorders such as
Mendelian disorders that are inherited in a family, generation after
generation. Hence, by using pedigree analysis for the study of
specific traits or disorders, generation after generation, it is
possible to trace the pattern of inheritance. In this analysis, the
inheritance of a trait is represented as a tree, called family tree.
Genetic counselors use pedigree chart for analysis of various traits
and diseases in a family and predict their inheritance patterns. It
is useful in preventing hemophilia, sickle cell anemia, and other
genetic disorders in the future generations.
Pedigree analysis is a record of occurrence of a trait in several generations of a family. It is based on the fact that certain characteristic features are heritable in a family, for example, eye colour, skin colour, hair form and colour, and other facial characteristics. Along with these features, there are other genetic disorders such as Mendelian disorders that are inherited in a family, generation after generation. Hence, by using pedigree analysis for the study of specific traits or disorders, generation after generation, it is possible to trace the pattern of inheritance. In this analysis, the inheritance of a trait is represented as a tree, called family tree. Genetic counselors use pedigree chart for analysis of various traits and diseases in a family and predict their inheritance patterns. It is useful in preventing hemophilia, sickle cell anemia, and other genetic disorders in the future generations.
