Women produce new eggs, study suggests
Mammals may continue to produce new eggs throughout their lives, a study carried out on mice suggests. The findings challenge the long-held belief that female humans, mice and other mammals are born with a finite supply of eggs, which lasts until the menopause. A team of researchers at the Massachusetts...
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'Saviour siblings' debate down under
by Juliet Tizzard
This week's BioNews reports on news that a 'saviour sibling' is to be born in Australia. A couple from Tasmania sought preimplantation genetic diagnosis (PGD) with tissue typing in order to have a second child who would be free from a particular genetic condition, Hyper IgM syndrome. In addition, the...