IB Biology HL D3.2.4 Phenotype Questions
Match each outcome in a stated phenotypic ratio to its named observable trait in IB Biology HL D3.2.4.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Identify the observable phenotype represented by each part of a stated phenotypic ratio, matching each ratio outcome to its named trait.
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IB Biology HL D3.2.4 Phenotype Questions question 1
In a strain of soybeans, high oil content (H) in seeds is dominant to low oil content (h) and four seeds in a pod (F) is dominant to two seeds in a pod (f). A farmer crosses two soybean plants, both with high oil content and four seeds in a pod. The offspring have a phenotypic ratio of 9: 3: 3: 1.
Identify the phenotypes of each part of the phenotypic ratio.
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