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Biology · PRINCIPLES OF INHERITANCE AND VARIATION

हिन्दी

Gregor Mendel conducted hybridization experiments on garden peas for 7 years (1856-1863). Which of the following contributed significantly to the credibility and success of his inferences?

  1. Small sampling size to avoid statistical errors
  2. First time application of statistical analysis and mathematical logic to biological problems
  3. Selection of characters showing continuous variation and blending
  4. Use of linkage maps for trait tracking

Correct answer · Option 2

First time application of statistical analysis and mathematical logic to biological problems

Explanation

Mendel's key breakthrough was applying statistical analysis and mathematical logic for the first time to biology, combined with a large sampling size which gave great credibility to his data.

Related questions

A cross between a true-breeding tall pea plant (\( TT \)) and a true-breeding dwarf pea plant (\( tt \)) yielded \( F_1 \) plants, which were then self-pollinated to produce 1200 \( F_2 \) plants. How many of these \( F_2 \) plants are expected to be heterozygous tall?→In pea seeds, starch synthesis is controlled by a single gene with alleles \( B \) and \( b \). Considering starch grain size as the phenotype, the alleles show (i)_________, whereas considering seed shape (round vs. wrinkled) as the phenotype, allele \( B \) shows (ii)_________.→Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).\n Assertion (A): In a monohybrid cross of Antirrhinum majus (snapdragon) between true-breeding red-flowered and white-flowered plants, the phenotypic and genotypic ratios in the \( F_2 \) generation are identical (1:2:1).\n Reason (R): The allele for red flower colour is completely dominant over the allele for white flower colour, allowing heterozygous individuals to express a blended phenotype.\nIn the light of the above statements, choose the correct answer from the options given below:→Mendel selected 14 true-breeding pea plant varieties as pairs. Which of the following pairs correctly matches the character with its dominant and recessive traits?→
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