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Questions and Answers
What was the purpose of Mendel's hybridisation experiment?
What was the observation made by Mendel in the F1 generation?
What was the proportion of dwarf plants in the F2 generation?
What was the result of self-pollinating the tall F1 plants?
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What was the observation made by Mendel regarding the traits in the F1 and F2 generations?
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What was the proportion of tall plants in the F2 generation?
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What was the result of Mendel's experiment on the inheritance of traits?
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What was the significance of Mendel's experiment?
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What was the term used to describe the first hybrid generation?
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Study Notes
Mendel's Hybridisation Experiment
- Mendel crossed tall and dwarf pea plants to study the inheritance of one gene.
- He collected seeds produced from the cross and grew them to generate the first hybrid generation (F1).
- All F1 progeny plants were tall, like one of the parents, and none were dwarf.
Observations of F1 and F2 Generations
- Mendel self-pollinated the tall F1 plants and found that in the F2 generation, some offspring were dwarf.
- The proportion of dwarf plants in the F2 generation was 1/4th, while 3/4th were tall.
- The tall and dwarf traits in the F2 generation were identical to their parental type and did not show any blending.
Key Findings
- Only one of the parental traits was expressed in the F1 generation.
- Both traits were expressed in the F2 generation in a 3:1 proportion.
- The contrasting traits did not show any blending at either F1 or F2 stage.
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Description
Study the results of Mendel's experiment where he crossed tall and dwarf pea plants to understand the inheritance of a single gene.
