PHOTO: EAST NEWS/BSIP
La reproduction ou le destin du chromosome.
Repr??sentation de la f??condation d'un ovule par un spermatozoA?de contenant un chromosome "Y" et les premiers instants de la fusion, migration division des deux identit??s g??n??tiques qui donneront 9 mois plus tard un gar??on.
Reproduction, the destiny of a chromosome.
Illustration of the fertilization of an ovum by a spermatozoid possessing the "Y" chromosome and the initial moments of fusion, migration and division of the two genetic entities, resulting, nine months later, in the birth of a baby boy.