TLS Online TPP Program

#Question id: 1497


In children with retinoblastoma, the chromosomal deletion that is present in all of their cells indicates that the chromosomal aberration:

#Unit 4. Cell Communication and Cell Signaling
  1. arose somatically in retinal cells.

  2. first occurred in the retina, and then spread to other cells.

  3. arose during early embryonic development.

  4. was inherited from a parent.