Class 12 · Principles of Inheritance and Variation

Historical Development of Inheritance Understanding — NEET Biology

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We must, however, recognise that though our ancestors knew about the inheritance of characters and variation, they had very little idea about the scientific basis of these phenomena.

NCERT Biology · Class 12 · Chapter 4 · Paragraph 11
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Which of the following statements are correct concerning the scientific rigor of Mendel’s experimental methodology? S1. His use of a large sampling size significantly reduced the impact of chance deviations on progeny ratios, enhancing data credibility. S2. Mendel's confirmation of inferences across successive generations ensured his results reflected general rules of inheritance. S3. He was the first to apply statistical analysis and mathematical logic to interpret biological problems. S4. By studying traits with continuous variation, Mendel could observe gradual blending of characters. S5. Mendel ensured that the factors (genes) controlling characters were treated as discrete units that did not blend.

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