The material stained by basic dyes in the nucleus was given ____ name by Flemming

Options

A. Chromosome
B. Chromatin
C. Chromatid
D. Nucleoles

Answer

To answer the question, "The material stained by basic dyes in the nucleus was given ____ name by Flemming," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks for the name of the material in the nucleus that is stained by basic dyes, which was named by Flemming.

2. **Identifying the Options**: The options provided are:
- a) Chromosome
- b) Chromatin
- c) Chromatid
- d) Nucleolus

3. **Analyzing Each Option**:
- **Option a: Chromosome**: This option is incorrect because the term "chromosome" was introduced by Walther Flemming in 1882, but it is not specifically related to the staining by basic dyes.
- **Option b: Chromatin**: This option is correct. The term "chromatin" was indeed introduced by Walther Flemming, and it refers to the material in the nucleus that can be stained by basic dyes.
- **Option c: Chromatid**: This option is incorrect. Chromatids are the identical halves of a duplicated chromosome and are not the term used for the stained material.
- **Option d: Nucleolus**: This option is also incorrect. The nucleolus is a structure within the nucleus where ribosomal RNA is synthesized, not the material stained by basic dyes.

4. **Conclusion**: The correct answer is **Chromatin**, as it is the material in the nucleus that is stained by basic dyes and was named by Flemming.

### Final Answer:
The material stained by basic dyes in the nucleus was given the name **Chromatin** by Flemming.

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