A new study conducted on fruit flies reports the first evidence that oocytes -- the cells that become eggs -- regularly rejuvenate the critical protein linkages that bind chromosomes together. The ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists are making inroads in understanding one of the central mysteries of human reproduction: Why do women’s eggs deteriorate ...

The gain of an extra chromosome during egg formation. The protein SMC1B is part of the ring-like cohesin complex that holds chromosomes together. The study found that variation in the SMC1B gene ...

While estimates of total pregnancy losses vary considerably, about 15% of known pregnancies end in miscarriage, and many other conceptions do not survive past the very early stages of pregnancy. The ...

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from ...