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The phenomenon where the offspring super...

The phenomenon where the offspring superior than either of the parents is:

A

Heterosis

B

Inheritance

C

Penetrance

D

Influence.

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### Step-by-Step Solution: 1. **Understanding the Question**: The question asks for a specific phenomenon where the offspring exhibit superior traits compared to either of the parents. 2. **Analyzing the Options**: The options provided are: - Heterosis - Inheritance - Penetrance - Influence 3. **Defining Each Term**: - **Heterosis**: This refers to the phenomenon where hybrid offspring show improved or superior qualities compared to their parents. It is often observed in plant breeding where hybrids exhibit enhanced growth, yield, or resistance to diseases. - **Inheritance**: This is the genetic process through which traits are passed from parents to offspring. - **Penetrance**: This term describes the proportion of individuals with a specific genotype that actually express the associated phenotype. - **Influence**: This is a general term that refers to the capacity to affect something, but it does not specifically pertain to genetic traits. 4. **Identifying the Correct Answer**: Given the definitions, heterosis is the only term that directly relates to the phenomenon of offspring being superior to their parents. Therefore, the correct answer is **heterosis**. 5. **Conclusion**: The phenomenon where the offspring are superior to either of the parents is known as **heterosis**.
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