NEETZoologyPrinciples of Inheritance and Variation
Which disorder is associated with an additional X chromosome?
Options
- ADown’s Syndrome
- BTurner’s Syndrome
- CKlinefelter’s Syndrome
- DPatau Syndrome
Correct answer
C. Klinefelter’s Syndrome
Step-by-step solution
This genetic disorder is also caused due to the presence of an additional copy of X chromosome resulting into a karyotype of 47, XXY. Such an individual has overall masculine development, however, the feminine development (development of breast, i.e., Gynaecomastia) is also expressed (Figure 4.17 a). Such individuals are sterile..