Symbols Used in Pedigree Analysis
Asked by Aaradhya Gupta · 2 years ago
What are the different symbols used in pedigree analysis and what do they signify?
1 Answer
In pedigree analysis, standardized symbols are used to represent different individuals and their relationships. Here are some common symbols and their meanings:
- Square: Represents a male individual.
- Circle: Represents a female individual.
- Filled Square or Circle: Indicates an individual affected by a genetic trait or disorder.
- Half-filled Square or Circle: Represents a carrier of a recessive trait.
- Horizontal Line: Connects two individuals who are parents to the offspring shown below the line.
- Vertical Line: Connects parents to their offspring.
- Double Horizontal Line: Indicates a consanguineous marriage (between relatives).
- Slash Through a Symbol: Indicates a deceased individual.
These symbols help in quickly understanding the genetic relationships and inheritance patterns within a family.
NEET Faculty · 2 years ago
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