In which disorder $XXY$ karyotype is present ?
Down's syndrome
Klinefelter's syndrome
Turner's syndrome
Edward's syndrome
What is the genetic disorder in which an individual has an overall masculine development, gynaecomastla, and is sterile?
The recessive genes located on $X$-chromosome in humans are always
When the chromosome number of a given organism has one additional chromosome in one of the homologous pairs, the addition is known as
The condition in which there are more than two complete set of chromosome is called
Turner's syndrome is