A BAFTA award nominated documentary considering Mendel's laws of inheritance and how the passage of dominant & recessive characteristics from one generation to another depends on discrete particles of matter.
| Directing | David Morphet | Director |
| Production | Peter Bradford | Producer |
| Editing | Ken Morgan | Editor |
| Sound | Peter Gilpin | Sound |
| Camera | Peter Nash | Camera Operator |
| Camera | Robert Webb | Camera Operator |
| Camera | Charles Smith | Camera Operator |