Multiple choice

Example for supplementary gene is

  1. Cucurbits

  2. Triticum

  3. Sorghum

  4. Oryza
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sorghum is the classic example of supplementary gene action, where glume color is controlled by two genes - one for pigment production and another for color presence. When either gene is recessive, the complementary effect is lost, producing the 9:3:4 ratio. Other options are important crop plants but not this specific genetic example.

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