In man sex linked cahracters are mainly transmitted though

Options

A. Autosome
B. Y- chromosome
C. X-chromosomes
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding Sex Chromosomes**: In humans, there are two types of sex chromosomes: X and Y. Males have one X and one Y chromosome (XY), while females have two X chromosomes (XX).

2. **Transmission of Sex-Linked Traits**: Sex-linked traits are primarily associated with the X chromosome. Since males have only one X chromosome, any trait linked to the X chromosome will be expressed in males if they inherit that allele.

3. **Inheritance Patterns**:
- A father can pass his X chromosome to his daughters (since daughters inherit one X from their father and one X from their mother).
- A mother can pass her X chromosome to both her sons and daughters (sons inherit their X chromosome from their mother and their Y chromosome from their father).

4. **Role of Y Chromosome**: The Y chromosome carries fewer genes and is primarily responsible for male sex determination. It does not carry the same range of sex-linked traits as the X chromosome.

5. **Conclusion**: Since the X chromosome carries a significant number of sex-linked traits and can be transmitted from both parents to their offspring, the correct answer to the question is that sex-linked characters in men are mainly transmitted through X chromosomes.

**Final Answer**: X-chromosomes.

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