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NEETZoologyPrinciples of Inheritance and Variation

What is a true-breeding line?

Options

  1. AA line that shows varied trait inheritance
  2. BA line that shows stable trait inheritance and expression for several generations
  3. CA line that has undergone genetic modification
  4. DA line that is cross-pollinated with other species

Correct answer

B. A line that shows stable trait inheritance and expression for several generations

Step-by-step solution

Mendel conducted such artificial pollination/cross pollination experiments using several true-breeding pea lines. A true breeding line is one that, having undergone continuous self-pollination, shows the stable trait inheritance and expression for several generations . Mendel selected 14 true-breeding pea plant varieties, as pairs which were similar except for one character with contrasting traits. Some of the contrasting traits selected were smooth or wrinkled seeds, yellow or green seeds, inflated (full) or const

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