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Biology · PRINCIPLES OF INHERITANCE AND VARIATION

हिन्दी

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?

  1. Pod shape: Constricted (Dominant) / Inflated (Recessive)
  2. Pod colour: Yellow (Dominant) / Green (Recessive)
  3. Flower position: Axial (Dominant) / Terminal (Recessive)
  4. Seed colour: Green (Dominant) / Yellow (Recessive)

Correct answer · Option 3

Flower position: Axial (Dominant) / Terminal (Recessive)

Explanation

According to Table 4.1 in NCERT, Flower position has Axial as dominant and Terminal as recessive. For pod shape, Inflated is dominant; for pod colour, Green is dominant; for seed colour, Yellow is dominant.

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:→Gregor Mendel conducted hybridization experiments on garden peas for how many years, and what was novel about his methodology compared to earlier biologists?→
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