Question

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

Answer 1

Hint: This is an analysis that can be used to trace the inheritance of a specific trait abnormality or disease that has been going on in a family for generations.

Complete answer:
Pedigree analysis is the study of a particular trait that is inherited from one generation to another. During these days in many cases, including various species of plant and animal, scientists are using the pedigree analysis to analyze the inheritance of phenotypes, or traits, using mating experiments called crosses.
Pedigree analysis is like a chart that represents a family tree, which displays the members of the family who are affected by a genetic trait or having a genetic disorder or maybe carrier of the disease.
In the family tree, the rows represent the generations of a family, squares represent the males and circles represent the females.
The pedigree analysis helps to know the trait of inheritance for a particular trait, and also know whether the trait is getting inherited or not.
It is a strong tool in human genetics which helps to predict the pattern of inheritance of trait, even when data is limited. Also helps in studying the pattern in the family that can be studied concerning a particular trait or the disease which is carried on to the next generation.

Note:
- This analysis helps in determining the genotypes, identifying the phenotypes, and in predicting how a trait will be passed on in the future.
- The inheritance pattern from the parents to offspring can be studied. It also helps to find the recessive and dominant types of traits.
- Symbols are used in the pedigree analysis, to represent males, females, persons affected by certain disorders, the individual has had children together, etc.