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IB Biology SL D3.2.4 Phenotype Questions

Use the genotype–phenotype distinction to identify how inherited alleles are expressed as observable characteristics in IB Biology SL D3.2.4.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Define phenotype as an observable characteristic or trait and distinguish it from genotype as the inherited combination of alleles.

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Study D3.2.4—Phenotype conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology SL D3.2.4 Phenotype Questions question 1

[Maximum number: 1]

The graph shows a sigmoid population growth curve.

Figure for Question IB Biology SL D3.2.4 Phenotype Questions question 1 — IB Biology SL

The table summarizes the genome size of several organisms.

Table for Question IB Biology SL D3.2.4 Phenotype Questions question 1 — IB Biology SL

Distinguish between the terms genotype and phenotype.

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