Plants Are Capable of Having Three “Parents”
increases the likelihood of fertilization, it also carries the risk of an egg merging with more than one sperm cell. This process, known as polyspermia, is usually fatal in animals and humans. In the process [...] weed killers,” explains Professor Rita Groß-Hardt from the University of Bremen. “We put this gene in one of the fathers. We also inserted an element that can activate this gene into a second father,” says [...] third plant (mother) with pollen from both fathers. In normal fertilization, only the sperm cell of one father fuses with the egg. In such a case, the herbicide-resistant gene is either not inherited or