Nucleus contain thread-like structures is called :

Options

A. Chromosomes
B. Vacuoles
C. Plastids
D. None of these

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the thread-like structures found in the nucleus of a cell.

2. **Identifying the Options**: The options provided are:
- A) Chromosomes
- B) Vacuoles
- C) Plastids
- D) Anoptes

3. **Analyzing Each Option**:
- **Option A: Chromosomes** - Chromosomes are indeed thread-like structures that are present in the nucleus. They are made up of DNA and proteins (histones) and play a crucial role in cell division and genetic information storage.
- **Option B: Vacuoles** - Vacuoles are not thread-like structures; they are storage organelles that help maintain water balance in the cell.
- **Option C: Plastids** - Plastids are organelles involved in storage and photosynthesis, not thread-like structures in the nucleus.
- **Option D: Anoptes** - This term does not refer to any known cellular structure and is incorrect in this context.

4. **Conclusion**: The correct answer is **Option A: Chromosomes**. They are the thread-like structures contained in the nucleus.

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