From today's Observer-
'According to the latest figures released by the HFEA, in May last year, one month after the new law removing anonymity was passed, just 12 British men donated sperm to the banks that supply the contry's 21 fertility clinics. In June this figure dropped down to only 10.'
Since one teaspoonful supposedly contains millions of sperm, ten doners will be plenty, although future generations might look alarmingly alike if they have literally come from such a small gene pool.
