Scientists say they can read nearly the whole genome of an IVF-created embryo
A California company says it can decipher almost all the DNA code of a days-old embryo created through in vitro fertilization (IVF)-a challenging feat because of the tiny volume of genetic material available for analysis. The advance depends on fully sequencing both parents' DNA and "reconstructing" an embryo's genome with the help of those data.
Anti-viral drugs can successfully make old human eggs young again
Women are born with all of the eggs they will ever have, unlike men, whose reproductive organs create millions of new sperm every day. The quality of the chromosomes and DNA contained within each egg declines as women age, which is why the average 20-year-old has an 86 percent chance of becoming pregnant, whereas this drops to 36 percent for a 40-year-old.
Creating a sperm or egg from any cell? Reproduction revolution on the horizon
Researchers are inching closer to creating human eggs and sperm in the lab that carry a full complement of anyone's DNA. It could revolutionize fertility treatment and raises huge ethical questions.