AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.
The absence of medium-height plants in the F1 generation shows that traits do not blend. If blending occurred, all F1 offspring would be medium-height (a mix of tall and short). Instead, all offspring were fully tall, meaning one parental trait was expressed completely while the other was hidden, not mixed.
Source: Chapter 8, Section 8.2.2
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The examiner wants students to directly link the observation (no medium-height plants, all tall) to why blending inheritance is disproved. Key point: blending would predict intermediate offspring; Mendel's result showed one trait was completely expressed and the other was hidden (recessive), not diluted. Mention both the expected outcome under blending AND the actual outcome for full marks.