In which of the following chromosomal disorders do b observe the features like a long furrowed tongue and short stature ?

Options

A. Down syndrome
B. Klinefelter's syndrome
C. Turner's syndrome
D. Payer's syndrome

Answer

To solve the question regarding which chromosomal disorder is characterized by features such as a long furrowed tongue and short stature, we will analyze each option provided.

### Step-by-Step Solution:

1. **Identify the Symptoms**: The symptoms given in the question are a long furrowed tongue and short stature. We need to find which chromosomal disorder is associated with these features.

2. **Examine Down Syndrome**:
- Down syndrome is caused by an extra copy of chromosome 21 (trisomy 21).
- Common features include short stature, a small round head, a partially open mouth, and a long, furrowed tongue.
- Therefore, Down syndrome matches the symptoms provided.

3. **Examine Klinefelter Syndrome**:
- Klinefelter syndrome is caused by an extra X chromosome (XXY), leading to a total of 47 chromosomes.
- Affected individuals are typically sterile and may have some physical traits, but they do not typically present with a long furrowed tongue or short stature as defining features.

4. **Examine Turner Syndrome**:
- Turner syndrome occurs due to the absence of one X chromosome (XO), resulting in 45 chromosomes.
- Affected females are usually short and may have some physical abnormalities, but they do not typically have a furrowed tongue.

5. **Examine Payer's Syndrome**:
- Payer's syndrome is not a commonly recognized chromosomal disorder and does not have the characteristic symptoms mentioned in the question.

6. **Conclusion**: Based on the analysis, Down syndrome is the only chromosomal disorder among the options that presents with both a long furrowed tongue and short stature.

### Final Answer:
The correct answer is **Down syndrome**.