No men OR women needed: Scientists create sperm and eggs from stem cells
The science also raises the possibility of 'male eggs' made from men's skin and 'female sperm' from women's skin. This would allow gay couples to have children genetically their own, although many scientists are sceptical about whether it is possible to ...
Female pigs can recognise the sex of sperm and influence the sex of their offspring
before the sperm have even fertilised the egg. To find out whether females can differentiate between female and male sperm, they inseminated female pigs with sperm that was either all X or all Y. They then analysed the pig oviduct gene expression - the ...
How Do Sperm Recognize Eggs? Mechanism Finally Found
It’s the stuff of 3rd-grade sex ed: sperm meets egg to make baby. But, surprisingly, scientists have actually been in the dark about ... And when researchers genetically modified female mice to lack Folr4, the mice were sterile. And what’s even more ...
'Female sperm' & 'male eggs' a possibility
LONDON: Researchers have suggested that it may be possible ... PGCs are the common precursor of both male and female sex cells. These cells were then developed into both sperm and eggs. Scientists used these to create live-births via in-vitro fertilization.
Getting the best sperm on target, naturally
His new research reveals much about the behavior of sperm and may pave the way to more successful pregnancies and healthier babies. When they’re in the uterus, human sperm have ... into the female egg to create an embryo. But how do doctors know which ...