Hap loid, dip loid and tr ip loid conditions respectively can be traced in :-

Options

A. Egg, Nucellus, Endosperm
B. Antipodal, Egg , Endosperm
C. Endosperm, Nucellus, Synergids
D. Antipodal, Synergids & Integuments

Answer

To solve the question regarding the haploid, diploid, and triploid conditions in flowering plants, we can break it down step by step:

### Step-by-Step Solution:

1. **Understanding the Terms**:
- **Haploid (n)**: A cell that contains one complete set of chromosomes. In flowering plants, the gametes (sperm and egg) are haploid.
- **Diploid (2n)**: A cell that contains two complete sets of chromosomes. The zygote and the nucellus are diploid.
- **Triploid (3n)**: A cell that contains three complete sets of chromosomes. The endosperm is triploid in flowering plants.

2. **Identifying the Structures**:
- **Egg**: This is the female gamete and is haploid (n).
- **Nucellus**: This is part of the ovule and is diploid (2n).
- **Endosperm**: This is formed after fertilization and is triploid (3n).

3. **Analyzing the Options**:
- **Option 1: Egg, Nucellus, and Endosperm**:
- Egg: Haploid (n)
- Nucellus: Diploid (2n)
- Endosperm: Triploid (3n)
- This option correctly matches the conditions.

- **Option 2: Antipodal, Egg, and Endosperm**:
- Antipodal cells are haploid (n).
- Egg: Haploid (n).
- Endosperm: Triploid (3n).
- This option is incorrect because it does not have a diploid component.

- **Option 3: Endosperm, Nucellus, and Synergids**:
- Endosperm: Triploid (3n).
- Nucellus: Diploid (2n).
- Synergids: Haploid (n).
- This option is incorrect because it does not have a haploid component.

- **Option 4: Antipodal, Synergids, and Integuments**:
- Antipodal cells: Haploid (n).
- Synergids: Haploid (n).
- Integuments: Diploid (2n).
- This option is incorrect because it does not include a triploid component.

4. **Conclusion**:
- The correct answer is **Option 1: Egg, Nucellus, and Endosperm**, as it accurately represents the haploid, diploid, and triploid conditions respectively.