| This involves taking an unfertilised female egg, removing the chromosomes, replacing them with one male's chromosomes, and fertilising it with another's sperm. |
| What we should see at this time of year are fields of maize about 1ft high and tractors fertilising the land. |
| Instead of fertilising small plots of land with natural fertilisers, thousands of hectares are fertilised with substances that do not occur naturally. |
| Since the greens are artificial, they don't require the typical lawn maintenance that natural putting greens need, such as watering, fertilising, weeding and mowing. |
| Preparation techniques have been developed that select sperm with fertilising ability and promote capacitation in the test tube. |
| Unknown to Lawrie, however, male lumpsuckers often die after fertilising the eggs. |
