Xenia effect was first observed in

Options

A. Wheat
B. Groundnut
C. Pea
D. Maize

Answer

**Step-by-Step Solution:**

1. **Understanding the Xenia Effect**: The Xenia effect refers to the phenomenon where the characteristics of the offspring (in this case, the color of maize kernels) are influenced by the genetic contribution of the pollen rather than solely by the maternal plant.

2. **Observation of the Xenia Effect**: This effect was first observed in maize, which is also known as corn. The different colors of maize kernels can be attributed to genetic changes that occur due to the input from pollen grains.

3. **Genetic Changes**: When pollen grains fertilize the ovules of the maize plant, they introduce genetic material that can alter the expression of traits in the kernels. This leads to a variety of colors such as purple, pink, brown, and black in the same ear of corn.

4. **Historical Context**: The Xenia effect was first documented by a scientist named Sringhill in the year 1928. This historical observation is crucial for identifying the correct context of the Xenia effect.

5. **Conclusion**: Based on the information provided, the Xenia effect was first observed in maize (corn), making it the correct answer to the question.

**Final Answer**: The Xenia effect was first observed in maize (corn) in 1928 by scientist Sringhill.

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