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GCSE Biology · key term
A diagram showing how a characteristic has been inherited through several generations of a family.
Used by Edexcel and OCR
Specification 3.14, 3.18B · Paper 1
Revise: Monohybrid InheritanceA family pedigree follows a characteristic through several generations. By convention, a square represents a male, a circle represents a female and shading shows that the person has the characteristic being followed. Lines show relationships between parents and their children.
A diagram showing how a characteristic appears across generations of a family.
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Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A family-tree diagram used to follow a characteristic through several generations.
Revise: Single Gene InheritanceA family pedigree follows a characteristic through generations. In the usual convention, squares represent males, circles represent females, and shading identifies individuals with the phenotype being studied. A horizontal line joins parents, while lines leading down connect them to their children.