Genetics

Fate of new genes cannot be predicted

New versions of genes, called alleles, can appear by mutation in populations. Even when these new alleles turn the individuals carrying them more fit to survive and reproduce, the most likely outcome is that they will get ...

Health

Fertility rates affected by global economic crisis

The global economic recession of 2008-09 has been followed by a decline in fertility rates in Europe and the United States, bringing to an end the first concerted rise in fertility rates in the developed world since the 1960s, ...

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