Which among these are the examples of polygenic traits in humans?

Options

A. Height
B. Skin colour
C. Eye colour
D. All of these

Explanation

**Step-by-Step Solution:**

1. **Understanding Polygenic Traits**:
- Polygenic traits are characteristics that are influenced by multiple genes rather than a single gene. This means that the expression of these traits results from the cumulative effect of several alleles.

2. **Identifying Examples of Polygenic Traits**:
- Common examples of polygenic traits in humans include:
- **Height**: This trait is influenced by multiple genes that determine the growth and development of an individual.
- **Skin Color**: Skin pigmentation is determined by several genes that affect melanin production.
- **Eye Color**: Similar to skin color, eye color is influenced by multiple genes that control the amount and type of pigments present in the iris.

3. **Analyzing the Given Options**:
- The question asks for examples of polygenic traits among the options provided. Since height, skin color, and eye color are all influenced by multiple genes, they are all considered polygenic traits.

4. **Conclusion**:
- Therefore, the correct answer to the question is that all the mentioned traits (height, skin color, and eye color) are examples of polygenic traits in humans.

**Final Answer**: All of these (height, skin color, eye color) are examples of polygenic traits in humans.

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