Inheritance in which female and male parents transfer an X - linked character to granddaughter or grandson through the offspring of the opposite sex is defined as

Options

A. Criss - cross inheritance
B. Non Criss - cross inheritance
C. Sex influenced inheritance
D. Sex limited inheritance

Answer

To solve the question regarding the inheritance pattern where female and male parents transfer an X-linked character to their granddaughter or grandson through the offspring of the opposite sex, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of X-linked Inheritance**:
- X-linked inheritance refers to genes located on the X chromosome. Males have one X and one Y chromosome (XY), while females have two X chromosomes (XX).

2. **Identify the Key Terms**:
- The question mentions "granddaughter or grandson" and "offspring of the opposite sex". This indicates that the inheritance pattern involves both male and female parents passing traits to their children of the opposite sex.

3. **Define Criss-Cross Inheritance**:
- Criss-cross inheritance is a specific type of X-linked inheritance where a trait is passed from a male parent to a female offspring, and then from that female offspring to her male offspring.

4. **Illustrate with an Example**:
- Consider a grandfather who is hemophilic (XH, Y). He passes the XH chromosome to his daughter (who becomes a carrier, XH, X). This daughter can then pass the XH chromosome to her son, making him hemophilic (XH, Y).

5. **Analyze the Other Options**:
- Non-criss-cross inheritance: This term does not specifically define any known inheritance pattern.
- Sex-influenced inheritance: This refers to traits that are expressed differently in males and females but does not specifically involve X-linked traits.
- Sex-limited inheritance: This refers to traits that are expressed only in one sex, not applicable here.

6. **Conclude the Answer**:
- Based on the definitions and examples, the correct answer to the question is **criss-cross inheritance**.

### Final Answer:
**Criss-cross inheritance**

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