Cybridization gives new recombinations of:

Options

A. Cytoplasmic genes
B. Nuclear genome
C. Plasmids
D. None of these

Answer

**Step-by-Step Solution:**

1. **Understanding Hybridization**: Hybridization is a process where two different species or varieties are crossed to produce a hybrid. In this context, we are specifically discussing cybridization, which involves the fusion of cytoplasm from two different species while keeping the nuclear genome from only one parent.

2. **Defining Cybrid**: A cybrid is a hybrid organism that has a nucleus from one species and cytoplasmic material from both parental species. This means that while the nuclear genes come from one parent, the cytoplasmic genes can be a combination of both.

3. **Identifying Genetic Material**: In cybridization, the nuclear genome is derived solely from one parent, while the cytoplasm is contributed by both parents. This is crucial because it means that any new genetic recombination will occur in the cytoplasmic genes, not in the nuclear genes.

4. **Analyzing the Options**:
- **Option A: Cytoplasmic genes**: This is correct because the new recombinations will arise from the cytoplasm contributed by both parental species.
- **Option B: Nuclear genes**: This is incorrect because the nuclear genome is only from one parent and does not involve any recombination from the other parent.
- **Option C: Plasmid**: This is also incorrect as plasmids are not involved in the cybridization process in this context.
- **Option D: None of these**: This is incorrect since we have already identified that cytoplasmic genes are involved.

5. **Conclusion**: The correct answer is that cybridization gives new recombinations of cytoplasmic genes.

**Final Answer**: Cybridization gives new recombinations of cytoplasmic genes.

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