Principles of Inheritance and Variation - Pedigree Analysis | 12th Zoology : Chapter 4 : Principles of Inheritance and Variation

Chapter: 12th Zoology : Chapter 4 : Principles of Inheritance and Variation

Pedigree Analysis

Pedigree is a “family tree”, drawn with standard genetic symbols, showing the inheritance pathway for specific phenotypic characters.

Pedigree Analysis

Pedigree is a “family tree”, drawn with standard genetic symbols, showing the inheritance pathway for specific phenotypic characters. (Fig. 4.10) . Pedigree analysis is the study of traits as they have appeared in a given family line for several past generations.

Genetic Disorders

A genetic disorder is a disease or syndrome that is caused by an abnormality in an individual DNA. Abnormalities can range from a small mutation in a single gene to the addition or subtraction of an entire chromosome or even a set of chromosomes. Genetic disorders are of two types namely, Mendelian disorders and chromosomal disorders.

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12th Zoology : Chapter 4 : Principles of Inheritance and Variation : Pedigree Analysis | Principles of Inheritance and Variation