Phenotypically, Turner's syndrome humans are

Options

A. males
B. females
C. Super females
D. Inter-sex individuals

Answer

### Step-by-Step Solution:

1. **Understanding Turner Syndrome**:
- Turner syndrome is a genetic condition that affects females, characterized by the absence of one of the two X chromosomes. This results in a chromosomal pattern of 45 chromosomes, represented as 44 autosomes and one X chromosome (XO).

2. **Chromosomal Composition**:
- In normal females, the chromosomal composition is 46 (44 + XX). In Turner syndrome, the composition is 45 (44 + X0), indicating the absence of one X chromosome.

3. **Phenotypic Characteristics**:
- Due to the absence of one X chromosome, individuals with Turner syndrome exhibit specific phenotypic traits:
- **Sterility**: They are typically sterile due to underdeveloped ovaries.
- **Underdeveloped Secondary Sexual Characteristics**: They may have minimal breast development and lack the typical female secondary sexual characteristics.
- **Absence of Menstruation**: Due to the underdevelopment of the ovaries, menstruation does not occur.

4. **Evaluating the Options**:
- **Option 1: Male**: This is incorrect as Turner syndrome only occurs in females.
- **Option 2: Female**: This is correct as individuals with Turner syndrome are phenotypically female but with specific characteristics.
- **Option 3: Super Female**: This is incorrect as super females have an extra X chromosome (XXX).
- **Option 4: Intersex Individual**: This is also incorrect as Turner syndrome does not classify as intersex.

5. **Conclusion**:
- The correct answer is that phenotypically, individuals with Turner syndrome are classified as **female**.