In plant and animal cells, chromatids or chromatin are made up of :-

Options

A. Only DNA
B. DNA, RNA and Histone
C. DNA, RNA, Protein and some fat bodies
D. DNA, RNA, Histone and non histones

Answer

To answer the question regarding what chromatids or chromatin are made up of in plant and animal cells, we can break down the solution step by step:

### Step-by-Step Solution:

1. **Understanding Chromatids and Chromatin**:
- Chromatids are the two identical halves of a replicated chromosome.
- Chromatin is the material that makes up chromosomes, consisting of DNA and proteins.

2. **Identifying the Components**:
- Chromatin is primarily composed of DNA, which carries genetic information.
- Proteins associated with chromatin include histones and non-histone proteins.

3. **Evaluating the Options**:
- **Option 1**: RNA, histones, and non-histones.
- This option is incorrect because it does not include DNA.
- **Option 2**: DNA, RNA, histones.
- This option is also incorrect because it omits non-histone proteins.
- **Option 3**: DNA, RNA, protein, and some fat bodies.
- This option is incorrect because fat bodies are not a component of chromatids or chromatin.
- **Option 4**: DNA, RNA, histone, and non-histones.
- This option is correct as it includes all the essential components of chromatids and chromatin.

4. **Conclusion**:
- The correct answer is **Option 4: DNA, RNA, histone, and non-histones**.