CAIE IGCSE Biology 17.4.10 Interpret Pedigree Diagrams Questions
Practise interpreting pedigree diagrams to determine how a given characteristic is inherited.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- interpret pedigree diagrams for the inheritance of a given characteristic
CAIE IGCSE Biology 17.4.10 Interpret Pedigree Diagrams Questions question 1
Polydactyly is a condition that can occur in cats and results in affected individuals having extra toes.
The diagram shows the inheritance of the condition in a family of cats.
What does the family tree show about the allele for polydactyly?
A
It is codominant.
B
It could be dominant or recessive.
C
It is dominant.
D
It is recessive.
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