A sperm donor with an undetected genetic mutation linked to heart disease transmitted the same condition to 9 of the 24 children known to be his offspring.
Spermadoonorit, kelle geneetiline mutatsioon jäi avastamata, seostatakse edasikandunud südameveaga, mille all kannatab tema 24 - st teadaolevast järeltulijast 9.