Allosomes are the name of

Options

A. Sex chromosomes
B. Swellings on the chromosomes
C. Chromosomes other than the ones which determine sex
D. Nucleolus organising regions of chromosomes

Answer

**Step-by-Step Solution:**

1. **Understanding the Term "Allosome":**
- Allosomes refer to a specific type of chromosome that plays a crucial role in determining the sex of an organism.

2. **Identifying the Correct Definition:**
- Among the given options, we need to identify which one accurately describes allosomes. The options are:
- A) Sex chromosome
- B) Swellings on the chromosome
- C) Chromosomes other than the ones which determine sex
- D) Nuclear organizing regions of the chromosome

3. **Analyzing Each Option:**
- **Option A: Sex chromosome** - This is a correct definition as allosomes are indeed sex chromosomes.
- **Option B: Swellings on the chromosome** - This is incorrect; swellings are not a recognized term for any type of chromosome.
- **Option C: Chromosomes other than the ones which determine sex** - This refers to autosomes, which are not allosomes.
- **Option D: Nuclear organizing regions of the chromosome** - This is also incorrect as it does not pertain to the definition of allosomes.

4. **Conclusion:**
- The correct answer is **A) Sex chromosome**. Allosomes are specifically the chromosomes that determine the sex of an individual.

5. **Additional Information:**
- In humans, the sex chromosomes are represented as XX for females and XY for males. This distinction is crucial for understanding genetic inheritance related to sex.

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