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 both female and male parents transfer an X-linked character to their granddaughter or grandson through the offspring of the opposite sex, we can break it down step by step.

### Step-by-Step Solution:

1. **Understanding 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. **Identifying the Pattern**:
- The question specifies that the inheritance involves the transfer of an X-linked character to a granddaughter or grandson through the offspring of the opposite sex. This means that the character is passed from a male to a female (daughter) and then from that female to her offspring (granddaughter or grandson).

3. **Defining Criss-Cross Inheritance**:
- Criss-cross inheritance is a specific pattern where traits are passed from a grandfather to a granddaughter or from a grandmother to a grandson through the opposite sex. This means that a male passes his X-linked trait to his daughter, and then that daughter can pass it on to her son or daughter.

4. **Analyzing the Options**:
- **Option A: Criss-cross inheritance** - This matches our understanding of the inheritance pattern described.
- **Option B: Non-criss-cross inheritance** - This does not apply as it does not describe the transfer through the opposite sex.
- **Option C: Sex-influenced inheritance** - This refers to traits that are influenced by the sex of the individual but does not specifically relate to X-linked inheritance.
- **Option D: Sex-limited inheritance** - This refers to traits that are present in both sexes but expressed in only one, which does not fit the description given.

5. **Conclusion**:
- Based on the definitions and the understanding of the inheritance pattern, the correct answer is **Option A: Criss-cross inheritance**.