Inheritance of skin colour in humans in an example of :-

Options

A. Codominance
B. Chromosomal aberration
C. Point mutation
D. Polygenic inheritance

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the inheritance of skin color in humans and what type of genetic inheritance it represents.

2. **Identifying Skin Color as a Trait**: Skin color is a phenotypic trait in humans that varies widely among individuals.

3. **Recognizing the Genetic Basis**: Skin color is not determined by a single gene but rather by multiple genes that contribute to the overall phenotype.

4. **Defining Polygenic Inheritance**: Polygenic inheritance refers to the scenario where a single trait is controlled by two or more genes. Each of these genes may have multiple alleles, and their combined effects result in a continuous range of phenotypes.

5. **Analyzing the Options**:
- **Co-dominance**: This involves alleles that are both fully expressed in a heterozygote. This does not apply to skin color.
- **Chromosomal Aberration**: This refers to structural changes in chromosomes, which is not relevant to skin color inheritance.
- **Point Mutation**: This involves changes at a single nucleotide level, which does not explain the variation in skin color.
- **Polygenic Inheritance**: This is the correct option as it accurately describes the inheritance of skin color.

6. **Conclusion**: The inheritance of skin color in humans is an example of polygenic inheritance.

**Final Answer**: The inheritance of skin color in humans is an example of polygenic inheritance.

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