The immortality of germ cells

Germ cells, the reproductive cells that eventually become eggs and sperm, are set aside early in embryonic development, when the embryo is just a hollow ball of cells called the gastrula. This means that the cells transferring ...

Identity theft, the secret to a cat parasite's success

The parasite Toxoplasma is carried by a large portion of the global human population. Now a study led by researchers at Stockholm University shows how this microscopic parasite so successfully spreads in the body, for example ...

Team investigates sex-determination mechanisms in birds

Scientists have known that sex-determination in vertebrates happens in the germ cells, a body's reproductive cells, and the somatic cells, the cells that are not reproductive cells. Yet they have not fully understood the ...

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