In which of the following disorder's affected individual's posses 47 chromosomes ?

Options

A. Turner's syndrome
B. Klinefelter's syndrome
C. Down's syndrome
D. Both (2) & (3)

Answer

To solve the question regarding which disorder is characterized by individuals possessing 47 chromosomes, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Chromosome Count**:
- Humans typically have 46 chromosomes, arranged in 23 pairs. This includes 22 pairs of autosomes and 1 pair of sex chromosomes (XX for females and XY for males).

2. **Identifying the Disorder**:
- The question asks about a disorder where individuals have 47 chromosomes. This is indicative of an extra chromosome being present.

3. **Recognizing Klinefelter Syndrome**:
- One of the well-known conditions associated with having an extra chromosome is Klinefelter syndrome. In Klinefelter syndrome, males have an additional X chromosome, resulting in a chromosomal pattern of XXY.

4. **Confirming the Chromosomal Makeup**:
- In Klinefelter syndrome, the total number of chromosomes is 47 (46 normal + 1 extra X chromosome). This condition leads to various physical and developmental traits, some of which may resemble those of females.

5. **Conclusion**:
- Therefore, the disorder characterized by individuals possessing 47 chromosomes is Klinefelter syndrome.

### Final Answer:
- The correct answer is **Klinefelter syndrome** (Option B).