#56

Lab Divides Human Egg Cells

Scientists begin assembling a haploid cell "library."

DSC-F0217_09
Sexual reproduction provides a kind of health insurance, protecting offspring from mutant genes thanks to DNA copies from each parent. Duplicate DNA can act as a healthy backup to offset those mutant genes — and that’s a drawback for studying diseases in the lab. Removing that backup could give researchers a clearer picture of how genes can lead to, or protect against, disease. And so they have long sought haploid embryonic stem cells, which can become any kind of tissue but conta...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
DSC-CV1118_1Aweb
+