Answer:
• Men with Klinefelter's syndrome have an extra X chromosome.
• Of the 23 pairs of chromosomes, one pair is called the sex chromosomes because they determine a person's sex. One sex chromosome is inherited from the mother and the other from the father. Mothers always pass on an X chromosome, but fathers can pass on an X or a Y chromosome. -
•The normal male chromosome arrangement is 46XY, but men with Klinefelter's syndrome have 47XXY. The extra X chromosome can come from either parent.
Step-by-step explanation: