Criss cross inheritance is shown by

Options

A. Y-linked gene
B. X,Y- linked gene
C. X-linked recessive gene
D. Autosomal gene

Answer

**Step-by-Step Text Solution:**

1. **Understanding Criss-Cross Inheritance**: Criss-cross inheritance refers to the pattern of inheritance where traits are passed from one parent to the opposite sex offspring. This means that a father passes a trait to his daughter, and that daughter can then pass it to her son.

2. **Identifying the Type of Genes Involved**: This type of inheritance is typically associated with X-linked genes. In X-linked inheritance, the gene responsible for a trait is located on the X chromosome. Since males have one X and one Y chromosome (XY), while females have two X chromosomes (XX), the inheritance pattern can lead to criss-cross traits.

3. **Analyzing the Options**:
- **Y-linked Genes**: These are inherited only by males and do not show criss-cross inheritance.
- **X-linked Genes**: These can show criss-cross inheritance as explained.
- **X-linked Recessive Genes**: These are a subset of X-linked genes that can also show criss-cross inheritance, especially when the trait is recessive.
- **Autosomal Genes**: These are genes located on non-sex chromosomes and do not exhibit criss-cross inheritance.

4. **Conclusion**: The correct answer to the question is that criss-cross inheritance is shown by X-linked genes, specifically X-linked recessive genes.

**Final Answer**: Criss-cross inheritance is shown by X-linked genes.

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