Illustration of a karyotype showing Klinefelter's syndrome. It is a common chromosomal abnormality in which one or more extra X-chromosomes are present in a male. It results in small testicles and the inability to make sperm. Affected males may have learning disabilities and/or behaviour problems. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Schroeder, Monica |
Taille de l’image : | 4550 px × 3840 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |