Medical research

Sperm coat protein may be key to male infertility

The loss of a protein that coats sperm may explain a significant proportion of infertility in men worldwide, according to a study by an international team of researchers led by UC Davis. The research could open up new ways ...

Genetics

German parliament OKs genetic embryo tests

(AP) -- After an emotional debate, German lawmakers voted Thursday to allow a procedure that looks for genetic disorders in embryos before they are implanted in the womb.

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