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Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation2 Marks
Question
In Snapdragon, a cross between true-breeding red flowered (RR) plants and true breeding white flowered (rr) plant showed a progeny of plants with all pink flowers.
  1. The appearance of pink flowers is not known as blending. Why?
  2. What is this phenomenon known as?
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Answer

  1. Because both the characters are recovered (Red and white) as such in the F generation in the ratio of 1 : 2 : 1 (Red, Pink and white).
  2. Incomplete dominance.

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