IB skill practice

Predict inheritance patterns with Punnett diagrams

Syllabus-aligned Biology SL genetics, ecology, and evolution skill with approved production seeds.

Paper 1, Paper 2 5 marks Difficulty 3

Identify carrier probability

A recessive-condition model in a climate and ecosystems seminar crosses Aa with aa. What proportion of offspring are expected to be carriers? Enter the answer and choose the interpretation that best matches the biological evidence.

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