chicks are killed every year shortly some six to 7 billion male layer chicks are killed every year shortly after birth at a point when they have a nervous system scientists at the francis crick institute in london have found that the system was successful in mice, and they think it ll work on chickens. in mice, and they think the researchers here have found a way of deactivating a gene involved with embryo development. the system can be programmed to stop either male or female embryos from developing using a technique called gene editing. the six of a mammal is determined by its chromosomes. the sex of a mammal is determined by its chromosomes. females have a pair of xs, males have an x and y. the process involves inserting half the gene editing molecule into the father s y chromosome, and the other half into the mother s dna. after mating, male xy embryos containing both halves of gene
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