In humans, height shows a lot of variation. It is an example of

Options

A. Multiple alleles
B. Pleiotropic inheritance
C. Polygenic inheritance
D. Pseudoalleles

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the variation in human height and what type of genetic inheritance it exemplifies.

2. **Analyzing the Options**:
- **Option A: Multiple Alleles**: This refers to the presence of more than two alleles for a particular gene. An example is the ABO blood group system. However, height is not determined by multiple alleles, so this option is incorrect.

- **Option B: Pleiotropic Inheritance**: This is when a single gene influences multiple phenotypic traits. An example is sickle cell anemia. Since height does not fit this definition, this option is also incorrect.

- **Option C: Polygenic Inheritance**: This type of inheritance involves multiple genes contributing to a single trait. In the case of human height, it is influenced by several genes, leading to a wide range of height variations. This option is correct.

- **Option D: Pseudo Alleles**: These are genes that are located closely together on a chromosome and produce related phenotypes. This does not apply to height, making this option incorrect as well.

3. **Conclusion**: After evaluating all the options, the correct answer is **C: Polygenic inheritance**, as human height is influenced by multiple genes, leading to significant variation.

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