Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

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

seo-qna
SearchIcon
Answer
VerifiedVerified
447k+ views
Hint: Scientists use pedigree analysis in order to study the inheritance of genes in humans. A series of symbols are used to represent different aspects of a pedigree.

Complete Answer:
- Pedigree analysis is a graphical representation which shows the pattern of inheritance in a family.
- These are the charts that show the phenotype or genotypes for a particular organism and its ancestor from one generation to the next generation.
seo images


Need of pedigree analysis in human genetics:
- Pedigree analysis is used to study the inheritance of genes in humans from one generation to next generation.
- The study of pedigree is also important in predicting genetic risks.
- It is also used for predicting many genetically inherited disorders such as cystic fibrosis, sickle cell anemia, etc.
- It is also useful to find recessive and dominant types of traits.

Conclusions that can be drawn from a pedigree analysis:
- Pedigree analysis can trace the Mendelian disorders.
- It can conclude the pattern of inheritance. Pedigree analaysis tells us whether the trait is linked to the sex chromosomes or autosomes.
- Pedigree analysis also concludes whether the trait is dominant or recessive.

Note: Pedigree analysis helps scientists a lot in order to predict any genetically inherited diseases or disorder so that they can prevent the passage of disease to the next generation.